Link to our Facebook Group, / 887277178144274 Link to my website, www.thedrivewayengineer.com Link to head dyno test article. www.superchevy.com/how-to/engi...
Пікірлер: 475
@Iwasthere14155 жыл бұрын
Dude you make the videos I’ve been looking for. Simple , straight up, and actually included me in the “99 percent” 😂😂
@TheDrivewayEngineer5 жыл бұрын
Thanks! I'm glad they are helping you
@pjl19192 жыл бұрын
I’m the 99 percent !
@jdunereaper15 жыл бұрын
Good info! Thanks for taking the time to do this. Really like your no nonsense and cheap approach to LS builds.
@DVCasey0311 Жыл бұрын
You have been a awesome resource of knowledge on LS engines. I absolutely love that you tell it how it is.
@russellgovett58015 жыл бұрын
Another great video, I’m just getting into the LS scene and need all this information. Thank you
@dewaynesloan71334 жыл бұрын
I'm new to your channel and I'm part of the 99% of people that don't have a lot of money but can put together a fast small block to run around the streets with out of a junkyard. Love the videos. Keep up with the educational videos.
@kurtistjones63375 жыл бұрын
Back when I wanted to build a motor. It was prc 2.5s all the way gotta have em. Now that my wallets out. 317s or 862s all day. Great vid
@vertigoat75965 жыл бұрын
Thank you for the education. I’m learning so much from your channel.
@markbuskens6070 Жыл бұрын
Just discovered your channel,very good information on the heads !!Loved the printed specs and the flow numbers!!Great on what heads came in which vehicles too.Look forward to seeing all you videos 👍👍
@jeremycribb46964 жыл бұрын
Good information, thanks for sharing your knowledge. Because of your video series, I’m strongly considering going this route over the traditional SBC in my Camaro.
@jessemathwig42672 жыл бұрын
I picked up a pair of 862's for my firebirds 5.7ls today. Thanks for the video.
@Bigskyguy564 жыл бұрын
Great info. You help to clear up much of the mystery regarding the heads for LS & much of the misinformation regarding an LS build in general. Thanks for taking the time to post your info & dis spell much of the BS going on out there. STAY REAL.
@somebodyyouusetoknow45324 жыл бұрын
I just answered all my questions I was gonna ask you. Good content for sure !
@marcusdalton22304 жыл бұрын
Great info, my junkyard 5.3 came with 862 heads
@stetri85 жыл бұрын
I really like your explanations! I am not a mechanic but if I see someone do something I got it forever. Can’t wait to find my LS/Truck Vortex engine
@TheDrivewayEngineer5 жыл бұрын
I'm a big believer in hands on learning, I do the same.
@hifro74534 жыл бұрын
You saved me man.... I was that guy with the lq4 thinking about swapping to flat top pistions... I was leaning towards 706 heads but then heard about the "some might crack " great information brother.
@TheDrivewayEngineer4 жыл бұрын
I've been that guy too, too much money into too little result.
@davidrichardson30374 жыл бұрын
I blew my lq4 up and found a lq9 block cheap and when I got the block it needed to be bored so I went .030 with +6 cc flat top pistons and the block was decked .010 and heads shaved .010 asa hot cam with 873 iron heads. I really like your info video
@youngestson65374 жыл бұрын
I got the stock 99 c5 Corvette with the ls block. Performs just fine for me. Video was very thorough and informative. ✌🏾💯
@TheDrivewayEngineer4 жыл бұрын
That's the real lesson, none of the heads are significantly better or worse than the others
@King87brougham515 жыл бұрын
I have my set of 862 heads put up thanks for the great video
@Johnny-jr2lq5 жыл бұрын
Warren Michigan checking in video #9 every video in this series were great it’s actually gave me the confidence to build my own now and like I said in the last video my build will be on Woodward cruse this year because of this information instead of just a edam motor sitting in the garage on a stand thanks JR
@TheDrivewayEngineer5 жыл бұрын
That's awesome! I want to make it down there as well, maybe we can hang out!
@Johnny-jr2lq5 жыл бұрын
The Driveway Engineer hell ya brother I grew up around Woodward and not in Birmingham or even Royal Oak hazel park the ghetto or better know as Hazel Tucky but my ex grew up in Royal Oak so I know the area very well I can show all the cool areas to hang out at best places to get good meals also but I gotta tell you make sure your cooling system is squared away the traffic can be a nightmare with all the classic cars on Woodward cruising
@v.e.72364 жыл бұрын
Pretty comprehensive and to the point. Thanks. I'll have to bookmark this vid. I've always preferred a smaller CC for quicker burn, better thermal efficiency. Its all aluminum after all, it can dissipate the heat much better than cast iron, therefore these engines can take the spark advance booster so sought after, w/o pre-detonation. Would like to see them design a head w/ more dedicated cooling to help the overall thermal efficiency.
@jimsmirh24064 жыл бұрын
Great info the buddy. I too am wanting to do an LS on the cheap side and you’re making it easier.
@TheDrivewayEngineer4 жыл бұрын
Thanks! I'm glad it's helping!
@jfeliciano26874 жыл бұрын
Just found your page here and your Facebook group... You my friend are awesome, you're like Richard Holdener for those who aren't trying to spend 10k on a build... Looking forward to binging on your videos.
@TheDrivewayEngineer4 жыл бұрын
I've read most of his books lol, not surprising we think alike.
@corvettefever3604 жыл бұрын
You are absolutely one of the few people that I have heard make such an intelligent statement about higher compression and boost. Apparently very few people are aware of this. I keep trying to tell people this oh, that you do not need to have 7 to 1 compression to run boost. There are actually people who run 14 to 1 compression and then boost. Regardless the reason it is going to have a snap your response is because it will still have the immediate torque. We don't have to wait for the turbo to spool up, which means you can go with a bigger Turbo for higher-end power but still have power in the low end. This also means that you don't have to overwork the turbo as much. I am currently finishing up a forged 384 Stroker with a 10.5:1 CR NA, & with only 10 PSI from the twin turbos, i am over 820 ft lb torque/ 715 HP. Those turbos are barely breaking a sweat.
@ronroberts1104 жыл бұрын
Diesels on 18-wheelers use 18:1 compression ratio plus a turbo, but for different reasons. That being said, it comes down to heat management. The vulnerable parts are exhaust valves, the exhaust side of the piston, and the turbo exhaust temps.
@corvettefever3604 жыл бұрын
@@ronroberts110 very true!
@TheDrivewayEngineer4 жыл бұрын
It's an old wives tail that just won't die like Pennzoil or destroked engines rev faster
@antonisautos87044 жыл бұрын
Maybe some people worry about the ol David that is pre detonation.... But with E-85 pretty much everywhere with it's higher resistance to engine knock and its characteristic cooler burning flame... you can have your cake and eat it too. So long as you set your fuel system up to use it. But really... if you're ready to swap heads and possibly engine swap all together... doing a fuel system along with it isn't really much to add on
@TheDrivewayEngineer4 жыл бұрын
I run my 10.5:1 6.0 on 87 octane
@charlesstaggs42585 жыл бұрын
I just read an article a few weeks ago that said the 706 heads were a game changer on the LQ4. I hopped on Facebook and found a pair of them about an hour away for $50. Thanks for confirming what I was crossing my fingers for! Subscribed!
@TheDrivewayEngineer5 жыл бұрын
I paid 50 for mine lol, then sold my 243's for 300 lol
@charlesstaggs42585 жыл бұрын
Ha! That's awesome! My LQ4 had the 873 heads on it. This build is just going to be for fun on the street. I'm going to put it on the track and see what it will do, but going to build a more serious engine for next year. I bought my car as a roller. It came off of the track running in the 8's at 160+ mph with a twin turbo 5.3. It was somewhere in the neighborhood of 1200hp. I'd like to get it back to doing that someday!
@blkgsxr04able4 жыл бұрын
Thanks for these videos theres so many parts out there it's hard to decide. Trying to figure out a head cam combo for my 00 ss camaro.
@LandonRoy-cv9rt4 жыл бұрын
Junkyard LS, new cam and a bunch of used tires for burnouts sounds like an awesome Saturday
@limabravo60653 жыл бұрын
Before I had an ls I thought the car heads / later truck heads were what I needed until I started looking at the combustion chamber sizes. Everyone said to get the 799 heads off a late model 5.3 but with an 04 5.3 I’d be going up in cc’s and down in compression. Being that I’m not using a turbo I decided to listen to mr holdner where he shows the 706 / 862 heads make the most power so I got some junk yard heads, cleaned them, lapped the valves, and put some el cheapo eBay springs on them, then I picked up a Chinese 615-183 intake for $65 brand new, ls7 lifters, summit Vortec towing cam and it’s a totally different truck
@antonisautos87044 жыл бұрын
Hey bud so I got this yukon 2500 with a 6.0 in it. I wanted to do a cam (summit cam for like 200 ish) and I wanted to also slap 862 heads on it to bump compression up. I heard that they flow less than the 317 heads that came with it... but a lot of it is above 6k rpms and I use the thing for towing and use on the street. Thanks for the video man
@davebarron59395 жыл бұрын
Yep, I agree, with my running LQ9 (all original) I am going to simply freshen it up, (check oil pickup tube seal) and slap it in . Run it, see how I like it, then I can play with cams and what have you. Good education thanks.
@FilthyPancakes3 жыл бұрын
How did it go?
@davebarron59393 жыл бұрын
@@FilthyPancakes Frankly, it didn't. I ended up tearing the engine down and could hardly get the cam out, although lifters and lobes look good. Fair amount of black carbon, but no sludge or metal, tested, and had 165 to 180 PSI in all 8 cyls dry prior. Still had crosshatch on walls and pulled one rod bearing looked good. So, now I am taking in to shop, have them do inspection and install stage two cam / bearings. put it back together and hopefully run it. Fingers crossed, potential for change without notice! LOL
@4040pmora5 жыл бұрын
Love the channel. Thank you for the help!
@inkscars63803 жыл бұрын
Man I gotta catch up on ALL your LS videos lol great content brother!
@TheDrivewayEngineer3 жыл бұрын
Thank you!
@oillife21154 жыл бұрын
Man you are funny at the same time you have knowledge I just subscribe you be having me cracking up I am sitting back just listening so I can be great also I'm almost done with my build LS1 2000 WS6
@deankay4434 Жыл бұрын
Not only do I like the information and down home opinion, but the immatations make happy, happy, happy!
@NDB390 Жыл бұрын
Great video. I have 862’s that are in mint condition that came out of a very low mileage 5.3. And I have a set of 799’s that came out of a torched 5.3. 799’s will need all work done to them. People keep telling me to run the 799’s and I’m like nope, 862’s are what I’m going to run.
@ronroberts1104 жыл бұрын
Concerning the valve size talk at 4:20. Most hot rodders have heard about how a Ford 302 can bolt up 351W heads for bigger valves, providing better breathing at high RPM's, but causing poor cylinder-filling/torque at lower RPM's. The opposite is also true. Bronco's with a 351W have swapped-in 302 heads with smaller valves. It provided less air-flow at the higher RPM's, but when paired with the right cam and intake, the low-RPM grunt was improved. Sounds like the 862 head is the sweet-spot, for balancing all the factors. Thanks for the awesome info. You should write a budget LS book. there are services that will print-on-demand and ship them for you (doesn't have to be shiny paper or color pics)
@rickwood2485 жыл бұрын
Love the channel, very useful info.. thank you
@turboman351w34 жыл бұрын
the 706 head made the most power on hot rod magazine dyno at west tech, get you some of that baby.
@johncools5424 Жыл бұрын
Just left my local junkyard where I've located 3 LSs. 2 6.0s and a 5.3 one of the 6.0s even had the 4l80 in it!
@Mutt69m5 жыл бұрын
Another good and informative video, thanks...
@stlchucko5 жыл бұрын
I have a 5.3 with 862 heads and a LQ4. I was thinking the same as you... LQ4 shortblock with the 862 heads, maybe smooth out the ports by hand, add a cam, and go party. I heard an engineer from Texas Speed said that he’d give up port CFM for compression any day of the week, and it makes sense. Compression will increase power everywhere.
@TheDrivewayEngineer5 жыл бұрын
Back in the 70's and 80's the SAE did a bunch of studies because they dropped compression into the toliet to deal with unleaded gas. Compression was the single largest factor in power and efficiency, and power rose faster than knock with compression, both static and dynamic. Power also fell off faster than knock.
@EGGINFOOLS5 жыл бұрын
@@TheDrivewayEngineer Which is why Mazda in their skyactiv engines are like 14 or 15 to 1.
@jamesavery66714 жыл бұрын
Yeah but you still need enough air or your choking the engine.
@LandonRoy-cv9rt4 жыл бұрын
SWEET my 03 Silverado 4.8 came with 862’s love me some compression
@brianhaw93983 жыл бұрын
There are a lot of guys at the local cruise night who should have bought shares in Summit before they started their build. I like your approach better. Cheeeeeeap horsepower!
@stivic9234 жыл бұрын
I like the way you think. Subscribed
@EGGINFOOLS5 жыл бұрын
6.0 block with a 4.8 crank. Do that build. Super cool info on this video. Thx
@f-bodyjon21893 жыл бұрын
Agree on 862. I want to swap out my perimeter bolt heads on my LS1 and swap to 862 so bad.
@chuckpatrick99264 жыл бұрын
Was looking for vids on this. Im piecing a lq4 together. Found the short block for $400 and 862 heads for 100. The heads have been checked out and cleaned so i jumped on em. I broke my ls1. #7 piston and messed up my 853's
@richardlambert13864 жыл бұрын
Sounds to me the numbers on the 862 is aluminum copies of the old 283 power pack heads thanks for the info and yes lowering the cc and upping the compression ratio is always better than shaving heads
@jeremyrenfro58674 жыл бұрын
Finally a guy that knows what he’s doing. Your not racing a flow bench!!!
@mannyr.27565 жыл бұрын
"Yep" I'm a real big fan of keep it simple stupid, I agree with you!
@chevysturgill63303 жыл бұрын
Sorry I listened to the entire video and this guy needs to cheer up.
@rontownsend82354 жыл бұрын
I've an LS motor and I can do burnouts with it as a stock chevy motor, no changes, none.
@1Patient4 жыл бұрын
Ya TheDrivewayEngineer this is a great bit of info... appreciate your thoughts on 862 & 706 heads vs. Compression on a LQ4 vs. LQ9 Gen 3 LS
@TheDrivewayEngineer4 жыл бұрын
I'll take the compression every time, even if I were fortunate enough to come across an LQ9, I'd still run 862 heads
@logannarmore77093 жыл бұрын
yay i got 862s cam swap intake and exhaust are on the way
@Project_Jolene Жыл бұрын
You are always on point!
@cruze_missile33624 жыл бұрын
Great 411 JR... keep up the great work.
@richardwimmer68464 жыл бұрын
I traded my old 350 four bolt main for a LQ9 and found a extra clean set of 823 heads with rockers for cheap,,,,, waiting on my summit cam,,,,,
@cliffjamerson31072 жыл бұрын
Thanks again for sharing bro I really appreciate you
@TheDrivewayEngineer2 жыл бұрын
Any time
@iamgoat30353 жыл бұрын
Hey dude ,GREAT INFO. When you put in a cam that doesnt require new lifters, pushrods etc etc. do you still need to pull the heads, remove lifters to get old cam out and new one in? cuz i dont own a Tq wrench or any special tools and trying to do this as cheap as possible. ALSO, Ive got a 2002 5.3 witha sheared off manifold bolt. so far ive tried migging lumps on there to twist it out. then drilled it and broke off an etractor after it moved about 1/3 turn. then tried migging nuts on it only to have them twist off. do you recomend i just use one of them clamps that use nearby holes to hold down the header/manifold flange or should i swap in another head i have from another 5.3 core or just keep tring to weld a nut on an remove? i have a auto darkening welding mask in the mail so maybe that will help me weld better w/o flinching from flash.
@tyrisa64334 жыл бұрын
Would it be a good idea to put 2 inch valves in the 862 heads?
@stevie..d..pontiactransamm12155 жыл бұрын
Smaller chambers equall cheap/more horesepower. Great video. You dont need big intake valves for the street. Not gonna use upprr Rpm's on the street.
@TheDrivewayEngineer5 жыл бұрын
Exactly, the small chamber heads beat the big valve heads everywhere but 7000 RPM regardless of what the flowbench says.
@stevie..d..pontiactransamm12155 жыл бұрын
Your exactly correct my man GREAT JOB, KEEP UP ALL THE GREAT WORK👍.
@onefastgmc4 жыл бұрын
Slap in a cam, and let it eat. Seems like everything else people are spending hundreds of extra dollars on only nets like an extra 20 horse and costs an extra $1000+. That's just what I've learned from watching this channel and reading up in the facebook group. These engines are stupidly efficient in factory trim aside from the atrocious fuel and timing tables within the stock tune, and the little baby stock camshaft. That's why they respond so well to bigger cams and a solid tune.
@HeadFlowInc3 ай бұрын
Note: All LS heads have combustion chambers 3-5cc larger than what GM advertised. Please feel free to measure by cc’ing. The changes in compression between the castings are legit; the actual compression will be lower than expected if you use the “advertised” chamber sizes when calculating. 👍
@Stevehevessy5 жыл бұрын
Great video
@biggskz4 жыл бұрын
So I got a lq4 with 317 heads but also got some 862 I'm rebuilding the motor what would be the best choice thanx
@Mickeymotormount3 жыл бұрын
I love your candid view of the subject matter. No beatin' around the bush here. I did a repower of my 01 2500HD 6.0 with a later ('03) 6.0 and used 862 heads with a stage 1 truck cam(Stage 1 NSR Truck Cam 206/212 .515/.522). Used stock drive by cable throttle body with stock truck manifold and flex fuel 5.3L injectors. ECM was tuned by Black Bear performance for 91 octane fuel for this cam and flex fuel injectors. This truck never ran so good. Night and day difference. Instant throttle response with seat of the pants torque increase. Thanks for steering me in the right direction on the proper head choice for my repower. Keep the great videos coming!!!
@mrmidnight325 жыл бұрын
I found a L59 at the local scrap yard and went hunting for hours to find 243’s to swap before I paid for it because I was told they were better. Until I found out the L59 set up with the 846 heads makes 15 - 25hp over the more common 5.3 with other head combinations. Still need to turn it over to make sure it’s solid. Still haven’t deleted VATs. But I did get a wrench to turn it by hand and the cycle feels clean.
@TheDrivewayEngineer5 жыл бұрын
This is what I want people to avoid precisely. To go to all that effort and expense, just to have a worse result. Sell them to someone who doesn't watch my videos lol.
@v8powa4665 жыл бұрын
do u have 243's ur looking to get rid of?
@TheDrivewayEngineer5 жыл бұрын
@@v8powa466 nope, sold them the day I took them off
@v8powa4665 жыл бұрын
@@TheDrivewayEngineer sounds like CK_32 might have them.....
@dmoney9932 жыл бұрын
Thanks for the knowlge im doing a 5.3 ls3 swap in a 84 300zx and im doing a full rebuild pistons. Cam heads valve cover everything to a stage 2 or 3 i want to hit the tracks and race for real but im still tryna figure out what is the best way to build it any input is appreciated
@jakewade73883 жыл бұрын
Concerning 706/862 heads, I have measured the throat on several pairs and noticed they are in the 1.74 range. That is around 92% throat to valve diameter. Isn't that unfavorable? I have always heard 88%-90% tops is what you want for good throttle response low lift flow street deal.
@joelewis6702 жыл бұрын
The first minute and a half of this vid had me hittin' that sub button 🤣
@wreckerman46914 жыл бұрын
Whatever that is very interesting whats the best cam for power and what about that chopie cam idle do you need that or not sounds nice
@yfnfresh91843 жыл бұрын
Yo ,im new to your channel,just wanted to know your take on my build ?because I too hear rumor about 243s.well I took my 706s off and put 243s on a 5.3..i kept the stock truck intake. flat top pistons along with btr stage 3 and beehive springs..dropping it in a g body..with a built 200r4.i have bug wheels but my rear end has 410 gearing ..respectfully for my first build what do u think?
@josecasas29644 жыл бұрын
I got 706 port and polished on my ls1 camaro... I was thinking about doing lsx heads... Wat u recommend.?... Im new to this.
@robschaben6103 жыл бұрын
Been trying to find this info for awhile...all the info I've read/watching has never layed it out in simply cut and dry form...thanks...
@TheDrivewayEngineer3 жыл бұрын
Glad it helped!
@jasonkearns3041 Жыл бұрын
I'm about to start a NA lm7 build I'm it has 862 heads. I'm thinking about putting 30 over flat tops in it. What would the compression end up bieng?
@petejoseph82575 жыл бұрын
I agree with host about 862s but some are more volume in combustion chamber than 61cc. Some are much more like 64.5cc so do check their chamber volume or you may be disappointed if you looking for bolt on compression increase. The higher volume chamber heads are for CA nox reduction, just a theory.
@stlchucko5 жыл бұрын
Peter Fraumeni It’s true that the chambers can vary in size, but that goes for any head. They could also be smaller as well; like some 317 heads measuring 67-68cc. On average, 862/706 heads with still have the smallest chambers.
@petejoseph82575 жыл бұрын
Did you notice I said ...SOME?
@stlchucko5 жыл бұрын
Peter Fraumeni Did you notice I agreed with you, stated that it could go either direction, and that it applies to any head? IOW- Advertised chamber cc is essentially a rough “average”. 317s will typically be considerably bigger than a 862.
@deegan7274 жыл бұрын
I can get the 706 heads for 200.00 and they’re not the castech heads. 50.00 sounds nice but maybe people are catching on now LOL. These will also be on a LQ4 with a stage 2 or 3 low lift truck cam. I think it will be a stout setup for my K5 blazer that spends it days under 6000 rpm.
@oillife21154 жыл бұрын
What is your intake on port and polish?
@koutros1004 жыл бұрын
Great info Many thanks
@kimble0055 жыл бұрын
Great video. Lots of info. If I change the compression ratio, or the cam, would I still be able to run stock computer? Thanks
@TheDrivewayEngineer5 жыл бұрын
Absolutely, it may need some tuning, but that's easy to find
@barrishautomotive5 жыл бұрын
For the record, and yes, I'm going to be that guy, Bob Lutz was a big 3 auto executive. Jeff Lutz is a drag week legend.
@TheDrivewayEngineer5 жыл бұрын
Eh, can't win em all lol
@crw36735 жыл бұрын
You are correct! And knowing is half the battle, yo joe!
@deegan7274 жыл бұрын
Yeah well suck both Lutz.
@JOHNNYFUTS5 жыл бұрын
Cheap burnouts is what it's all about 🤑
@TheDrivewayEngineer5 жыл бұрын
This guy get's it lol.
@lafeyetteransom56894 жыл бұрын
Unless you just bought new tires like I just did. But I love my burnouts more lol
@ricktotz40783 жыл бұрын
Cheap on reliable crap
@tremendous91375 жыл бұрын
"You're stoooopid, I got sum hades on my car"😂😂😂😂 Had me dying from the jump, couldn't stop laughing through first half of video. Had to watch it again! " If you're Bob Lutts you don't need yo be watching my video"😂😂😂 "You're stoooooopid"
@TheDrivewayEngineer5 жыл бұрын
That's like 90% of the comments usually lol
@tremendous91375 жыл бұрын
@@TheDrivewayEngineer, my face was literally that emoji! My wife said" what the hell is wrong with you, why are you crying and laughing", all I could do was say" you're stooooopid" "shooooooot"! She's pissed now because I've been walking around the house the last 10 minutes repeating it over and over😂😂😂😂😂😂😂
@luisvelasquez96853 жыл бұрын
Love it thanks for the info
@jacksmith31895 жыл бұрын
Good information Thanks
@TheDrivewayEngineer5 жыл бұрын
Thanks for watching!
@privatedata6652 жыл бұрын
706 or 862 , just drop the old thoughts about the original SBC valve size
@shawnlibby6754 жыл бұрын
You think it'd be worth putting 799 heads that I already have off 04 Suburban 5.3 onto my 04 GTO 5.7 LS1 came Factory with 241 heads
@robertking8885 жыл бұрын
what about 862s on a lq9?
@krep3811 ай бұрын
Hey JR, love your KZbin videos! I love your emphasis on most gains for cheap and minimal screwing around. I have a question tho. I have a 2012 GMC Sierra 1500 (5.3 LC9) and Im about to do the DOD delete along with other PM since its at 150K miles. I found a dirt cheap set of 862 heads I wanted to throw on while I was doing that so I rewatched this video that inspired me to get those. And my question is, how is it possible that the 243 stock heads I have now, with 64.45cc chamber have a 10.5:1 compression ratio but the 862 stock heads with 61.15cc chamber have 9.5:1 CR? Thanks man, I appreciate it
@TheDrivewayEngineer11 ай бұрын
Because you have newer Gen IV stuff, so the piston volume and everything is different. My videos tend to focus on Gen III stuff because it's cheaper and easier to swap.
@EvanReub8 ай бұрын
How do you torque the used head bolts?
@KruiserKrawler3 жыл бұрын
Along the same lines as the LQ4 with 862 heads instead of LQ9... I have a L33 with 243’s, the L33 has flat top pistons and 9.9:1; so would you recommend using 862’s on that engine? Or would it put the compression ratio higher than optimal? I’m trying to figure out the best head/cam/valve spring combo for this engine to make good reliable power.
@TheDrivewayEngineer3 жыл бұрын
I wouldn't bother swapping any heads personally, it's not going to be a life changing power gain
@daviddenman74795 жыл бұрын
Are you still going to do a video on a “all motor” build???? I need ideas on my lq4 build. Thanks
@TheDrivewayEngineer5 жыл бұрын
That's what these 862 heads are for
@pvcarmon14 жыл бұрын
Will 862 or 243 heads work as a direct bolt on replacement for 317 heads on a flat top piston LQ9 short block? Will there be piston/ valve strike since chambers are smaller with the flat top pistons? My 317 heads were sacrificed/ borrowed for a friends turbo application. What do you recommend. Thanks in advance.
@TheDrivewayEngineer4 жыл бұрын
Chamber size doesn't change the valve seat. They will work fine, compression will be around 11:1
@DarthBobo685 жыл бұрын
Does any of this change going between a 5.3 and a 6.0? IE at what point does displacement need more head than the 706/862?
@TheDrivewayEngineer5 жыл бұрын
I'm putting these on my LQ4 just to get the point of compression and not have to mess with pushrods and crap. If you were really "Building" an engine, like, 8,000 rpm kind of racecar engine, then you'd want to get into the higher flowing heads, but even then, I'd just go rectangle port at that point. If you have boost, just add another PSI to make up for the difference.
@savage63945 жыл бұрын
“That Sum Bitch Jump a Coke can, Shuuuuuut”. Ha Ha Ha. Thanks for the helpful info and cracking me up!
@TheDrivewayEngineer5 жыл бұрын
We all know that guy lol. For me that guy is my Uncle Duane, who was pretty instrumental in getting me into cars in the first place lol.
@alonzofloyd81405 жыл бұрын
Nice tech. tip Bro, gonna save me some cash
@zx6rkawi094 жыл бұрын
I picked up a core l99 6.2 for 40.00 for 823 heads and gen 4 rods. Took it apart all was wrong with it was broke valve spring. All bearings looked new. What i found out is they will replace a engine for blown head gaskets or anything in this day and time.
@TheDrivewayEngineer4 жыл бұрын
Yeah, transmissions are the same, alot of shops will just say "rebuild" to any problem, then you find out they are just swapping remans, not even doing the work. I was in a local place that didn't even have a fixture lol
@zx6rkawi094 жыл бұрын
@@TheDrivewayEngineer alot crooked shops. This engine looked new on the inside it blew my mind how they could do someone like that. Someone paid to put in a new engine and all it was was a 1hr fix
@downsouth4-doorcaddy2425 жыл бұрын
LS2 came with 243 heads in the corvette and 2006 cts-v's also
@TheDrivewayEngineer5 жыл бұрын
I believe the LS4 got them as well
@derekr18545 жыл бұрын
I got my 243's off a 2008 trail blazer ss
@ScrapyardFights4 жыл бұрын
05-06 gto too as well as the 6.0 ssr.
@LSswapGarage14 жыл бұрын
Or a good majority of the early Gen IV 4.8's and 5.3's. I have 3 sets of 243s sitting here and not one of them came off of a 5.7 or 6.0.... They are just as much a run of the mill truck head as the 799 equivalents are. Same goes with the L33 5.3 Gen 3... either or. 243`s are not a special performance application head and why guys pay so much is more or less just ignorance. I left a set of 243`s last time out because they were on an LY2 4.8 in a 2008 van.. but yeah idiots here pay 300 dollars for cores because they somehow think they came from a Vette lol. Gen IV stuff is old now too lol...
@elprostipirugolfo81764 жыл бұрын
PickardvilleSRT8 so all the 243 heads from corvettes, trucks and vans the same head?
@henryreprogle38684 жыл бұрын
Yeah i agree you videos was a huge help but i question say im going to do every thing discribe in your videos and am going to. But what if i wanna run t56 trans on back i see people say they bolt up but what about everything else like pcm and do you have a video on what i need
@TheDrivewayEngineer4 жыл бұрын
You don't need anything, buy it, bolt it together, it's a factory combination
@Lu-e7 ай бұрын
I got a 2000 c5 corvette LS1. Planning on throwing a Texas speed cam Torquer V4 CAM. The heads are 241, but I got a pair of 706 heads that are on a 5.3 from a 04-05 Silverado. My question is if I throw the 706 on the ls1 how much compression will it raise and would be a bad choice to run them? They will remain stock I won’t do any work to the heads.
@TheDrivewayEngineer7 ай бұрын
This is nonsense, just put the cheapest cam in and have fun