The different 6.5L blocks

[@nothingtoseaheardammit]

I have a P400 in my H1, and had one in my last H1 as well. It is - without a doubt - the best 6.5 full stop. You mentioned the bottom end web girdle... all well and good, but it also has ceramic coated internals, forged crank and pistons, and MASSIVELY improved cooling passages in the heads. The metallurgy on them is the best you'll find in the 6.5's and it's just an all-around great engine. I'm pushing 16psi on my P400 with stock head bolts and it runs like a scalded dog.

[@oscarpena127]

I just found a Chevy 6.5 it need work. I’m clueless on Diesel, but I’m highly interested. I’m here to learn. Hopefully watching your videos will help me make a purchase.

[@scottmoore7020]

I've got a 93 2500 6.5 turbo that I paid $900.00 injector pump was bad. I put one off of 92 6.2 and I love the truck it get great fuel mileage. Thanks for the videos

[@maxsoucy7970]

Quick note, anything in a squarebody is a 6.2, the gmt400 was mixed 6.2/6.5

[@maxsoucy7970]

Factory in a squarebody, 6.5 can be swapped in

[@JessePelkey1]

correct

[@haydenpearson7203]

so the 506 diamond wasn't offered in the truck?

[@briancifreo3214]

Awesome. Listening as I am scraping intake gasket from heads and see that I have the 506 international diamond in my two door 98 Tahoe 4x4. I’ll add that another indicator of the 506 diamond is the international logo diamond behind the block number driver side back of block at tranny.

[@Dark_Knight_USA]

Greetings: Thx 4 the share

[@JessePelkey1]

Thank you for watching

[@denisfrancoeur5590]

Hello again Jesse! Thanks for making me more inform about my 6.5.

[@JessePelkey1]

Hey there Denis, thank you again for watching 👍 I really do appreciate it

[@denisfrancoeur5590]

@@JessePelkey1 Jesse I noticed you still have original turbo and upgrade turbo should be something to do I read.

[@JessePelkey1]

@@denisfrancoeur5590 believe me I know, I just did a couple videos of this very topic hahaha

[@SUPERCHIVO2007]

Hey man I got 01 3500 HD. After I did my injection pump I developed a knock. I also did injectors I have see your video of timing the pump Can I use another tipe of scanner to do it or has to be the one program you have

[@JessePelkey1]

Tech 2 is a program that you can use in order to read the TDC offset in calibrate your injection pump accordingly.

[@VSIIIHoldenUte]

Hi Jesse. Thanks for the vid, it was very helpful. I too have a 506 (installed in a modified Toyota), however the date code is F090, which I understand makes it a year 2000 casting. Would you know what vehicle it was likely originally installed in? The DB2 number points at a 94-97 van, but IPs come and go so... Also, I see Heath Diesel sell a main bolt kit especially for the 506. Apparently the 506 has 6 x 10mm bolts (instead of all 12mmm). They claim this leaves more metal in the webbing to help reduce cracking. Do you know of any discussion around this? And would you believe there are 506 likes on this video as I write this? 🤣

[@JessePelkey1]

The 3/4 and 1 ton platform trucks ran the 90s chevy body style up into 2000, so so more than likely out of a truck, suburban or 3/4 or 1 ton van. To answer your question on the main bolt size, yes this is correct. A block that uses smaller main bolts does leave more material in order to prevent cracking, but unfortunately they do still crack.

[@VSIIIHoldenUte]

@@JessePelkey1 Thank you, sir!

[@JessePelkey1]

No problem

[@billyjoeblanton8226]

Is there any information out on how to wire the motors for these trucks up I’m struggling to get everything hooked back in can’t find any videos or any information on where these wires go and I have a few left over don’t know if I got two different styles or if I’m missing something any help is appreciated!

[@komorifarm9308]

stopped in making them in 2000 yet they are in the 2001-2002 van style

[@darinwilliarms2299]

Thank you so much ☺️

[@AndraeTaron]

Great information 👏🏽👏🏽👏🏽👏🏽👏🏽👏🏽

[@jarlizan]

found out that the obs i bougt have a 506 Diamond Block 😎🤩and its cause off this Great video you made telling me , tnx bro keep up the good work , whats cool i got a international firetruck also ,only its gasoline 6.4

[@haydenpearson7203]

if you put a higher pressure oil pump in the 506 would that solve most of the issues with it being a squirter block

[@globalsolidarity55]

Ive got a 97 1 ton dually (king cab) Inherited it from original owner. Its got 480,000km. towed trailers its whole life until I picked it up in late 2019. The engine was changed less than 100,000 km ago. I have no idea what engine is in it now. I think the pmd went last Wednesday, ordered a new one. Besides installing a spring loaded turbo actuator and putting new oil cooler lines in (i tried to order heath diesel ones, but shipping to kanuckistan is a nightmare) I absolutely love the thing.

[@paularchambault9515]

Kanuckistan? 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@charleshensley8678]

Just picked up a low mileage 95 4x4 Silverado 1500 excab with a 6.5 was told it was special ordered

[@DubNationVids]

Thanks for these videos, good to see some 6.5 content!

[@vanduraman]

Just picked up a 599 block out of a 94 k1500 with the egr intake and ds4 pump. So that means that they had some leftover 599s in 94? 130 000 miles with new heads and studs.. about 600 usd..in Norway, 6.2s and 6.5s where mass imported because of cheap diesel fuel..got a 99 506 with the same mileage. Got the 180 degree thermostats 2000 mod 50/50 Flow waterpump. Duramax fan, Hayden hd fan clutch, pmd relocate..5-40 fully syntetic Oil. 0 blowby..Just bought the 599 as a spare :)

[@vanduraman]

My truck is a k2500, but i could Just change the intake right?

[@JessePelkey1]

Not necessarily a left over but yes. From my research the production of the 599 casted block ended in 93 so 94 would have been a year that you could see a 599, great find by the way. And yes your non egr intake will bolt right up

[@SnaFubar_24]

I've got a '94 K2500 with 247k mile on it that runs great so it is good to hear some '94s had a 599 block. I am going to check the casting when I get a bit of time free.

[@timothyschulz4730]

how you identify an Optimiser block?

[@gregsmith6394]

Thank you, love the video's...

[@4dirt2racer0]

havin to get n aftermarket oil pan for the p400 aint a problem at all

[@JessePelkey1]

Not at all, I was just pointing out the fact that you do indeed have to get a different oil pan for it. 👍 Thank you for watching that far into the video by the way

[@brianbarnes3625]

Any info on a block that has just 2 lines and 12 dot square in the valley. I can tell the number on the back with my camera snake. I have line on a 599 that’s seized I’m thinking of getting to build.

[@gega9979]

My vehicle will not start approaching freezing unless plugged in. Is there an issue or should I just get a coolant recirculate to heat the block ?

[@JessePelkey1]

When was the last time the glow plugs were changed?

[@gega9979]

@@JessePelkey1 they were serviced a year ago when I saftied the vehicle She just don’t like the cold. Possibly something with fuel lines or ? I know the fuel pump and system around it can be troublesome

[@JessePelkey1]

@@gega9979 not likely it has anything to do with the fuel if it starts up just fine when warm and hard starts only when it's cold I'd say. Depending on the temperature and the overall health it's not uncommon to have hard starts in the cold

[@keithcochran392]

Gm good wrench crate engine any info on them? I am at work away from my truck for a few days & can’t check the block number.

[@JessePelkey1]

Good wrench motors were a factory replacement from GM. Basically when a truck needed a new engine, the dealership would then install a Good wrench engine 👍

[@cordderrylpittman7200]

If you could I need some help I have a 95 gmc suburban with a 6.5 turbo diesel engine with over 400,000 miles i love this suburban i found a 02 6.5 optermiser with 89,000 miles will it work for my truck? I have electronic throttle on mine so I want to make sure I can make it work or if it will work what I might need to change if anything

[@MrDeclanmee]

at what size can you rebore the block on a 6.5 tubro gm 599 too

[@ducatiridingmidget]

Just bought my first 6.5. It’s a 1996 Chevrolet 2500 extended cab long bed two wheel drive for $500. I will be needing assistance very soon to get it running again.

[@JessePelkey1]

Welcome to the 6.5l community man, you got that truck for a great price. Whenever you need help, just reach out to me on Facebook messenger (link in the video description) and I'd be more than happy to lend a hand.

[@briancompton3557]

Thanks for taking me to school on the 6.5s. Have a 93 w/ 418000km and still running strong. Am starting with a catch can as tired of the slobber from intake side of turbo. Have ordered lp harness, new ops, already changed glow plugs. On my spare engine out of 96, can I use the manual pump or have to convert to electronic? Thanks in advance.

[@dylanslade683]

love the content but my guy prop the phone up and sit down the shaking kills me you can even get a tripod from best buy for like $25

[@JessePelkey1]

Hey man, I appreciate you taking the time to watch the videos and I do appreciate the feedback. I'm happy to say this is an older video and I have since purchased a tripod as well as a better camera and hope to make better videos for y'all in the future

[@zusclhz]

THAAAANK YOU SO MUCH for Teaching!! I have a 506 block in my 94 donor truck... does that mean the motor is a 97+ motor in a 94? I have a cracked 599 still kicking like kung-fu in my 93 crew, still hauls 12k lbs well, but it cracked down passengers side cooling jacket before I got it. I thought about swapping to the 506 from my donor truck, but wondering if I should just seal the 599 and keep running it?? What are your thoughts, Sir ? 🙏🚂🎼🌹🎶🎵⚕️🛠 ~C< 3)>>-Z->}

[@JessePelkey1]

Great question, In all honesty it would be wise to swap the good engine over to the truck to prevent any catastrophic brake downs leaving you on the side of the road, but if you'd rather run it till it finally craps out then i wouldn't blame you one bit.

[@shanegeorge7344]

Do if gas stirring wheel work 6.5 if the are the same

[@claysumm5398]

You should do a video on how to plug in a 6.5 and things of that nature/ winterizing your truck I live in Indiana so mild winters but I’m a first time diesel owner and 6.5 owner and would help a ton!

[@JessePelkey1]

Absolutely man, that's a great video idea! I will get it recorded this weekend along with another video 👍

[@nickf2678]

Friendly correction, yes, I know at this time this video is dated, however I needed to point out that when these engines were being installed in the Chev/GMC trucks and vans (which includes the GMT 400's), it wasn't a collaboration between GM and Detroit Diesel...Detroit Diesel was a subsidiary of GM, much like the car/truck divisions we all know. This was from its inception in 1938, up to when it was sold to then Daimler-Chrysler in 2000.

[@taylorh3930]

I just bought a 96 Chevy Silverado 6.5 diesel for my next restoration project. 500 000km truck runs like new never bin rebuilt all original transmission is going (4l80) truck is completely stock. I'd like to swap it to pushbutton 4x4 and swap it over to 97-98 style dash it's a full load bucket seat truck.

[@JessePelkey1]

That would be pretty bad ass man, congrats on your recent purchase 👍

[@noahenright3082]

I have a supposed 93 block out of a k3500 but i cannot figure out what it is, i assumed a 599 but theres are no casting numbers in the valley or under the heads at all, there are numbers behind the flywheel. M SNPO 8V103E 100812 0219 Does anyone have any information on this? Thanks

[@daltonwes47]

I am looking at a 94 2500 with a 5 speed manual, would that would be a squirter block etc?

[@JessePelkey1]

Possible but doubtful, the main casting to look for as a squirter is a 506. If the truck has the original motor in it I would say it's a non squirter

[@chrisgillespie7194]

I have a 96 K2500 L65 with minor mods and 330,000 miles but what I’m looking for is the dual thermostat crossover that was found on the 97 and newer engines without buying the whole upgrade kit!

[@JessePelkey1]

You may be able to to find a set up on ebay or at a local salvage yard, if your lucky. I don't have spare ones in the shed or I'd sell you a set up.

[@chrisgillespie7194]

Thanks for the reply Jesse. I’ve been looking there but most of them are single stat or used in the vans. I would like to chat with you more about the 6.5s and what I’ve figured out.

[@JessePelkey1]

@@chrisgillespie7194 absolutely man, if you email me your number or send me a message on Facebook or Instagram I'd be more than happy to talk to ya

[@chrisgillespie7194]

@@JessePelkey1 Could you shoot me your email? I don’t have Twitter or Facebook, lol.

[@JessePelkey1]

@@chrisgillespie7194 [e-mail]

[@taylorh3930]

How are the 1996 motor ?

[@JessePelkey1]

96 from what I've seen and heard seem to be pretty good, of course all 6.5l suffer from some of the same issues and the 96s are no acception but with proper maintenance and keeping an eye on things you should be pretty good

[@taylorh3930]

@@JessePelkey1 would it be a oil squerter? I'll be running all John Deere fluids.

[@MrDeclanmee]

Hi, I have a safari track rv with a 6.5 turbo gm diesel engine , it's a 599 engine, it broke the Crankshaft I'm just wondering is it a short or long block?, thanks

[@bayleestrein2737]

Those only refer to the current state of the engine, with heads is considered long block, short block is no heads just a bare block, if your engine is complete you have a long block

[@MrDeclanmee]

@@bayleestrein2737 hi thanks for that information, i have to rebore my 599 engine it is all ready rebored at .30 how big of a rebore can i do

[@godblessthisnation8386]

Don't forget suburbans

[@JessePelkey1]

cant forget about the burbans man, when I say truck or gmt400 platform the suburban is included in that.

[@ShadowOppsRC]

Good info thanks for sharing. The engines to avoid of the 6.5 were the light duty ones that came in the taho and suburban. They only used a two bolt main for the crank and had the egr. I have a 93 k3500 with the mechanical injector pump. The heavy duty engines were a four bolt main. Biggest issue with mine was the dude never changed oil and then sucked sand into it so now I get to do a rebuild.

[@BEAMERNOOB]

Can you run the better pistons in the squirter block

[@JessePelkey1]

Yes you can

[@dbrannon79]

After watching your video I discovered my 95 crew cab has a 929 block. can you tell me what are the up's and down's to this block compared to the others out there? mines has about 275K miles on it and is still running strong, all still stock and with a 4L80E trans, 4:10 gears averaging 13 mpg combined. Ive been looking to improve the mileage with some simple upgrades that won't break the bank! I was thinking the 4" exhaust would be best and cheapest to start with.

[@JessePelkey1]

Absolutely man, 929 blocks were not a bad block, they were more or less the middle of the road block. The 929s didn't have piston squirters which for some people make it more desirable then the 506 blocks. The 929 did suffer from the cylinder web cracking but not nearly as bad as the 506. All in all it is a great motor and block as long as preventative maintenance is kept up with 👍 There are definitely a bunch of mods to do to these trucks to improve the fuel milage and an exhaust is a step in the right direction for sure. Opening up the exhaust will alow the motor to "exhale" more efficiently, combined with an intake the motor will start working for you rather than fighting itself to do what you want it to do.

[@dbrannon79]

@@JessePelkey1 thank you :) I feel confident this motor will last me another 75-100k miles before it gives up the ghost considering the smoke thing I mentioned in your other video's comments. that gives me some time to find or possibly rebuild another motor. as for fuel mileage, I have been dancing around the idea of removing the vacuum pump as well since I've already done a "homemade" manual waste gate and there's no EGR. I've wondered if by just removing it will help any on increasing the fuel economy. my goal is to go from the 13 I get now to 16-18 mpg for everyday driving

[@JessePelkey1]

@@dbrannon79 definitely achievable man. One of the great things about these motors is that they do sip fuel and only get better even with small changes. I refer to the vaccume pump as a parasite, any extra load on the motor is essentially robbed horsepower and fuel economy. It may only be a little bit of difference in in both aspects, but with other contributing mods they really start to shine.

[@canzcustoms]

4 6.5 td so far and all were cracked, mostly on 4th main outer. Not sure if the optimizer is any better, still contemplating the 7500 for an optimizer but hearing they are cracking as well.

[@JessePelkey1]

I have also heard they do have the cracking issue unfortunately.

[@brianweber2941]

Good video. But If I am correct the 6.2L came in the HUMMVEE M998 and some of the M1114 had 6.5L non turbo An all M1151 came with the 6.5L turbo diesel because the added armor had about 6 to 8 thousand lbs. added to the rig

[@JessePelkey1]

This video wasn't meant for the 6.2, it Was talking specifically about the 6.5, I am aware of the 6.2 but this video wasn't wasn't for the 6.2. hens the title of the video.

[@brianweber2941]

@@JessePelkey1 I understand that. Is was more of a side note that some HUMMVEE's didn't have them in more as a information bit. Wasn't pointing out anything you said wrong. Like I said it was a good video. One of the most in-depth video on the differences in the 6.5L blocks on the KZbin. Wasn't trolling for a fight

[@travisibarra8557]

Hey man I have a 2000 chevy dually with 6.5 turbo diesel and it has a problem where it only starts when its cold and whenever it warms up and I turn it off it won't turn back on until it cools all the way down im thinking its the injection pump I just wanted to see if would know what the problem is. I already replaced the pmd,fuel filter, lift pump, glow plugs and glow plug relay

[@zachtremblay4618]

Sounds like you do have an IP problem. Have you relocated the pmd away from the engine?

[@JessePelkey1]

I would first check and make sure all the battery cables are nice and tight, is it throwing any codes at all?

[@travisibarra8557]

@@JessePelkey1 it isn't throwing any codes at all and it has to good batteries

[@travisibarra8557]

@@zachtremblay4618 yes I have i put it inside the front bumper

[@zachtremblay4618]

Also check the grounds on the intake and on the trans dipstick hold down.

[@jahuewar]

I have a 94 gmc k2500 6.5 turbo. I did away with the turbo wast gate, is there anything i need to worry about with doing this. I also did a egr delete on it to. Thanks in advance

[@JessePelkey1]

You may notice more firm shifts but there is nothing to worry about. I would recommend if you have a stock gm turbo, not to push it past 16psi, the bearings will go out prematurely by doing so and you'll be changing it sooner than expected. Also if you dont have head studs I wouldn't push it past 16psi because you'll blow a head gasket 👍

[@tomrohn8607]

Jessi I just picked up a 99 crew cab diesel..im wondering if it has am General block..im in Ohio weather is bad..i need to check casting number..im hearing 99 block is better casting..

[@orlandoduran7740]

you should add it all started with the 6.2

[@JessePelkey1]

Another video for another time, this one was just focused on the 6.5 blocks specifically. If I included the 6.2s in would go on for alot longer. Plenty more videos to come especially about the 6.2s to the 6.5 and how they differ

[@isaacbaylor4511]

i realize I am quite randomly asking but do anybody know a good place to watch new series online?

[@reesenico6402]

@Isaac Baylor lately I have been using FlixZone. You can find it on google :)

[@devinhutson6313]

Hahah I can relate to the "worst block" comment that you say you have! I got a 1980 k10 with a 350 SBC and 624 heads. They are the worts heads ( according to most online information) that chevrolet ever produced for the 350. Still running strong on my truck with out issue! I still want to convert to a 6.5 turbo diesel tho......it will happen one day.

[@triplebgarage872]

Is there anything I should specifically consider when buying another motor to swap out for a bad one? Just bought a 94 suburban with a nasty nock on the pass. side and I’m thinking of finding another 6.5 to put in it. Are all 6.5s interchangeable?

[@JessePelkey1]

Yes all 6.5l are interchangeable aside from a few differences between the 93 and older to 94 and newer. Where your looking to buy a motor, if your looking at used, I would at least look for leaks, make sure it turns over, and if the owner has a video of it running even better. There are alot of things to consider when buying used.

[@mnsnowmobiler1284]

What kind of sun/windshield visor do you have on your truck?

[@JessePelkey1]

It a Lund with factory cab light holes. I found someone selling it on ebay for $100

[@JimmysAutoClinic]

Hey my friend. I came across your channel because I'm having some series misfire issues. I have a 2000 Chevrolet 3500 HD made it to a 5-speed. I do have a code which is the p0251. Basically I started looking at the optical sensor on a fuel pump that I had laying on the floor essentially what I think is some dirt got in from when I changed the fuel filter. Yesterday I tried cleaning out the fuel filter housing and I use my air gun to blow out the cavity and I think I might have blown some dirt in because now it's running worse. So I'm going to try disassembling the pump and flushing it out with some nice clean diesel and Brake clean and hope for the best. Any tips or tricks? Also because this is a block video is the 2000 Chevrolet HD 3500 a good block? I was told that they are. Also I tried looking down the harness to see if that resistor was there but I didn't see it . I also got that from your other video which I thought that would be my Smoking Gun LOL . And thank you for your time and knowledge. I know what a pain it is to edit videos and film them as I have my own channel.

[@samuelclemons6821]

My '95 Suburban K1500 with about 250k has a nasty habit. When driving at normal hughway speeds if I let off of the accelerator for more than a couple of seconds when coasting downhill on slowing down in traffic, the engine drops to idle and will not respond when I try to accelerate again. It continues to idle smoothly and the steering and brakes work fine, if just won't respond to the accelerator until I switch the key off and then restart. When it first started happening, I would pull off the side of the road and stop, then restart. Now I just shift to neutral then quickly switch off and recrank. I have replaced the PMD and relocated it to the front bumper and replaced the computer. Also, the cruise control does not work. Any thoughts?

[@dennismoon9842]

I had a 95 k2500 and would recommend checking your throttle position sensor. If one fails it could cause all the problems you’re describing including your cruise control not working.

[@S33Electrical]

I have a 95 6.5 with a little over 250k & I'm also having the same problem. Did you ever find out what's causing it?

[@13yearsaprepperr.jtilbury.51]

the Chev workhorse rv chassis up to 2003 ,,I have one in Australia

[@taylorh3930]

What's your thoughts on the liquid damper ?

[@JessePelkey1]

Much better design than the factory balancer. The fluid dampener uses centrifugal force allowing fluid properly balance the crank shaft by equalizing distribution, much like bead balancing a tire.

[@taylorh3930]

@@JessePelkey1 I'm not sure if it's a rumor or not but I had a guy tell me they don't work well in -40c as I live in Saskatchewan Canada this concerns me a bit. He just claimed liquid damper will reak havoic in -40 weather. And crankshafts if I were to build a 6.5 from scratch or least buy a optimizer my thoughts were studs a griddle cause apparently the optimizer cracks around the mains then got thinking about swapping a scat crankshaft in the block but I think that would be a waste of money. I think a griddle kit studs and a liquid damper would hold 300hp all day long.

[@taylorh3930]

@@JessePelkey1 what's your opinion on liquid damper in cold climates ?

[@JessePelkey1]

300hp definitely achievable with that path you wanna go. As far as the freeze point of the silicone in the fluid dampener I have no idea. That would be a question for the manufacturer for sure, but if the freeze point is above the temp that it gets to in your area it could potentially cause major issues

[@hummervs3278]

It isn’t true. They get used in aircraft (different engines of course) and get way cold and still perform.

[@jamesdolanxd]

Hey dude! Awesome video, Thanks for clear and concise knowledge! I've got a 2000 GMC Savana mini school bus. I haven't found any block casting numbers yet, but I've got this big job I've got to do coming up fast and could find them once I get started on it.... (water pump, vacuum pump delete, turbo rebuild, full cooling system upgrade) and I'm wondering how long this thing will last. Are there separate numbers for the van blocks? The school bus company that made mine went out of business so my information is highly limited! ahah

[@JessePelkey1]

There isn't any difference in the blocks specifically to the busses that I know of man, once you find the casting numbers that will tell you exactly what you have. Definitely sounds like you have quite the project ahead of ya 👍

[@joeblow6123]

Great videos man keep it up very informational looking at buying a six 598 not familiar with the six fives I almost need to call you and talk to you and get your input LOL is 450 K so 280 300,000 miles too much for a 6.5

[@JessePelkey1]

Thanks man, I appreciate it. Try to keep them informative you yall as possible 👍 some what I would look for to determine on buying the truck or not is how much is the guy asking? And how bad is the blow by?

[@JessePelkey1]

300k honestly isn't too bad on a 6.5l depending on how well it was maintaind and if it was properly serviced.

[@joeblow6123]

Yeah buddy says it has like 450 on it just a little bit iffy. facebook.com/marketplace/item/647894219155863/

[@JessePelkey1]

Honestly if it as spotless as he says it is, it wouldn't be a bad deal. Seems like he does actually take care of it

[@joeblow6123]

Fuck thanks man for your input you’re awesome keep making good content

[@tomrohn8607]

I have 5 of these diesel trucks..the 99 is a 506 diamond block

[@tomrohn8607]

International

[@tomrohn8607]

Out here in my shop.i notice out of all 5 of my trucks..the 99 crew cab has a dual thermostat set up..i bought this truck as a no start and a knock in motor..i changed all 8 glow plugs plus damper pulley.now start right up even in 20 degree weather..pulley cured the knock

[@777Slots]

Hey All I have a 98 K2500 with a 2005 6.5 engine, is this a solid engine? Thoughts Please .....#JessePelkey

[@JessePelkey1]

Solid engine, of course all the 6.5l blocks had their issues but the later blocks did appear to be quite a bit stronger from what I have seen and read

[@777Slots]

@@JessePelkey1 Thank You 🙏🏻

[@JessePelkey1]

@@777Slots anytime!

[@tylerblack3122]

Opinions on the crew cab short bed 6.5s?

[@JessePelkey1]

Love it. I did own a crew cab short bed but if was a 5.7, and I wished so badly i could swap it but did not have the funds at the time

[@rickyweddington4501]

How much does it cost to rebuild a 6.5 diesel

[@JessePelkey1]

That all depends on a few things honestly. But, a standard rebuild kit itself, with new bearings, pistons gaskets and o rings can run anywhere from $500 on the low end and up to $900+ on the high end if your crankshaft has any cracking on it you'll need a new one and that can be around $500+ and if the heads are cracked, its roughly $400 a head. If you do it yourself and shop around you can find some good deals for sure, I wouldn't skip on the quality though. You wouldn't want to redo it because a bad part failed. If you have a shop do it, they will tell you different prices based on the hourly rate of the shop. So if it just needs new bearings, rings, piston heads, gaskets and o rings you could do the job for right around $600 give or take.

[@jerrydlaughrin2880]

Back in 2016 I had to replace the 6.5 diesel engine in my pick up I bought a brand new P400 6.5 diesel this engine is brand new not remanufactured made in Franklin Ohio i’ll leave it at that you can look them up you’re not a bad engine they have more power then the standard 65 engine know that’s for sure.

[@JessePelkey1]

If you watched the video I talked about the p400 sir.

[@jerrydlaughrin2880]

@@JessePelkey1 Yes I know I am going to swap out my Rosso oil pan that I bought from Leroy diesel and put the factory pan back on because I have a 2 Wheel Dr. pick up not a four-wheel-drive I’m tired of the dealership every time they change oil they strip out the oil plug is costing me a lot of money trying to get it fixed typical Chevy dealership not happy so I’m going back to my factory oil pan but I still have one issue with this engine it runs hot when I hang my foot in it for too long and that’s even without a load just running by it self no load no towing or anything not sure why I have the high flow water pump Duramax fan clutch and all that stuff on it supposedly timed the way you said it supposed to be timed in your show in Way Leroy‘s Diesel said it’s supposed to be timed but still having trouble with it warming up getting too hot it cools down real good though when you take a foot out of it running a 3 quart aluminum radiator in it just don’t know why it’s running hot

[@tomrohn8607]

I have a 1996 c3500 with 506 block.ive ran the shit out of it..225000.still runs strong

[@orlandoduran7740]

they are also seen in step vans

[@marthastewart8467]

Problem with p400 is they dont make them anymore

[@JessePelkey1]

Unfortunately but they are still out and about and can find one if you look hard enough

[@marthastewart8467]

@@JessePelkey1 All I can find are remanufactured engines. If you see one new, LMK

[@JessePelkey1]

I'll keep my eyes pealed but more often then not its gonna be reman sadly. I wish someone would start making them again.

[@ESLinsider]

Yeah funny I just went to the r/diesel forum and asked about a Workhorse p42 6.5 and someone said... "Lastly, the workhorse used the 506 block which is pretty much the worst Diesel engine ever made." It's actually 2004 so here you just said that those were 97-99?

[@JessePelkey1]

97 through 99 also had some 506 blocks for the pick-up trucks, my truck for example is a 97 and my old 98 both were equipped with 506 blocks. The 506 was knows as one of the weaker castings as far as the 6.5l motors due the metallurgy of the casting. Have also run into other 506 blocks other trucks in these years as well.

[@tylerblack3122]

Have you had the chance to make a custom crossover pipe yet for the 4wd to work?

[@JessePelkey1]

I have not but I am ordering the new one this coming week and I will be doing a video on it when it arrives

[@louiscarodine6175]

I have a hmmwv m1038 and these engines are ticking time bombs. Civilian models I believe are a little better and usually can easily make it past the 150,000 mark, I still havent seen a humvee or h1 hummer to make it over that mark. With that said, I hope to put a civilian 6.5 in it soon. I will pay you to do it for me lol

[@JessePelkey1]

Hmmwv's were definitely run hard, put away wet and weren't the absolute most reliable truckes ever made for sure haha. I also know a few friends that use to service them in the army and they were never 100% "done my the book" the swap would definitely be the first time I had ever worked on a hmmwv but it would be incredibly fun. That motor is buried in there with very little room to get at anything without removing a ton of crap out of the way😂

[@louiscarodine6175]

@@JessePelkey1 the only problem is that it is completely mechanical. How much do you think something like that would cost? I know their is a million trucks laying around in junk yards but the labor for such a project isint pretty lol

[@louiscarodine6175]

I might jus pay you to do it lol

[@louiscarodine6175]

First I need to find a truck

[@louiscarodine6175]

Because I want the transmission replaced at the same time

[@justinmyslive4108]

I've heard the marine 6.5 blocks were bored 0.20 bigger than the truck blocks

[@aaronbutler8934]

Just my two cents. NO! The 6.5 is not a big block that GM converted to diesel! Throw a 6.5 and a bbc on a stand ,side by side, and I dare you to tell me there the same block! Oh and it’s not a Duramax either! I’ve had the privilege of personally building all three engines (6.5, bbc, Isuzu Duramax) and can tell you that although you may find similarities. Their all completely different!!

[@JessePelkey1]

2 cents always appreciat man, and thank you for commenting. Like I said in the video i always forget shit and the comments section is open for everyone to help fill in the gaps 👍 like forgetting to mention when I started about offered hp and torque that the 6.5l is 395 cubic inches. I will definitely be doing more videos on the subject due to the fact there is a ton of info that would take way longer than one video

[@That4.3Sierra]

Isuzu only helped build duramax’s until 2010. After that, GM took over fully

[@ryanburbridge]

Wouldn’t most of the civilian 6.5s be electronic? ‘92-‘93 DB-2 mechanical injection. ‘94-‘00 DS-4 electronic injection. Military applications are still mechanical to this day.

[@JessePelkey1]

Yes, however injection pumps were not the focus of the video. Video was intended to go over the block differences specifically, saving the pumps for another video because I feel the differences between the pumps has enough info for a video all on their own👍

[@ryanburbridge]

@@JessePelkey1 makes sense great job

[@ryanhurst2988]

Hey buddy if you have some extra time j would like to talk to you about my 97 . Thanks

[@JessePelkey1]

Absolutely, you can message me here or if you have fb that's the easiest way to get ahold of me 👍

[@SFH_AG]

The diamond block engine is not made by international just the block and head improved castings

[@JessePelkey1]

Though you are correct about it being improved, you are also wrong. The double diamond blocks were made by Navistar.

[@submik]

@@JessePelkey1 Navistar and International are more or less the same thing. en.wikipedia.org/wiki/Navistar_International

[@kurtscreations6681]

Great video. Im new to the 6.5 diesel and after watching this I found out my 85 C30 dually has a 141 6.5 TD. I just purchased a set of promaxx heads for it. Has head studs already. Has vacuum pump and egr delete. Mechanical IP 3" diamond down pipe to 4" pipe. Leaning towards a fass lift pump. Any info or recommendation appreciated.

[@JessePelkey1]

That's awesome man, welcome to the 6.5l world. I actually have a video for the fass 165 install where I go through how i installed it and some other fuel modifications that can be done. Of course from my truck to your truck there will be slight differences but the premise of the install is the same.

[@jasonodaniel3927]

What are you talking about short block an long block.all 6.5 are same deck height to my knowledge.a short block is basically everything in the engine without the heads installed and long block is everything including the heads

[@JessePelkey1]

That's exactly what I'm talking about, when buying a motor you can opt to buy either a short block, a long block or a complete. Figured I'd mention it in the video to spark interest if someone didn't know the difference when buying a motor and if someone wanted me to do a video on the difference I would.