FUEL SYSTEM! - LS1 SWAPPING A 79 SQUARE BODY CHEVY 4X4 PART4 - Chevy K20 Project - Video Series

In this video we tackle the fuel system on the 79 Chevy K20 Squarebody 4x4.
#lsswap #fuelsystem #ChevyK20
@dicks4x4 - Instagram | Facebook
New K20 Playlist: • New Chevy K20 "Goldy" ...
Project Chevy K20 Playlist: • Project Chevy K20
Project Chevy K10 Playlist: • Project Chevy K10
Parts installed: 87 Chevy K5 baffled fuel injection tank, New pump module(replacement for a stock 87 Chevy K5 tank) with upgraded EP381 pump P/N: 25163473. Russell -6 AN braided fuel line, Russel fittings. Wix 33737 fuel filter / regulator. The fitting for the outlet of the filter is a Russell 640940.
Parts used:
Fuel tank:
www.summitracing.com/parts/rn...
Fuel pump module:
www.summitracing.com/parts/sg...
Fuel fitting x6
www.summitracing.com/parts/ru...
Fuel fitting x2
www.summitracing.com/parts/ru...
Fuel fitting x1
www.summitracing.com/parts/ru...
Fuel hose x1
www.summitracing.com/parts/ru...
Fuel hose x1
www.summitracing.com/parts/ru...
Fuel fitting x1
www.summitracing.com/parts/ru...
Fuel fitting x1
www.summitracing.com/parts/ru...
Fuel Pump x1
www.summitracing.com/parts/ad...
Music:
Angel of Mercy by Ethan Meixsell
The Fiery Furnace by Ethan Meixsell
Takeoff by Ethan Meixsell
Vindicated by Ethan Meixsell
Hey Sailor by Letter Box
Pride before the fall by Ethan Meixsell

[@Dicks4x4Garage]

I hope you all have a great weekend! If you have a question feel free to ask it here or on Facebook / Instagram @dicks4x4

[@cledussnow3466]

Killer vid Dave. I appreciate how you went over everything step by step. Thanks.

[@Dicks4x4Garage]

Thanks brother, appreciate you watching!

[@ironworkers495]

Cool now i can try this thanks for your video

[@Kaidance12]

Great video as always! Keep up the good work!

[@Dicks4x4Garage]

Thank you, glad you enjoyed it. Have a good weekend!

[@cassidyhruby7211]

This video is gonna help me so much when I start to do my 81 k20 keep on making square body videos 👍

[@Dicks4x4Garage]

Glad it could help. Lots more square body action to come!

[@DjCBlaq]

Thanks man. Squarebody Nation!

[@Dicks4x4Garage]

Yep!!

[@MrBrien15]

Good stuff man. Very helpful!

[@Dicks4x4Garage]

Thank you, glad it helps!

[@GatheringSticks]

Awesome video...loved the music too.

[@Dicks4x4Garage]

Thank you!

[@King87brougham51]

Thanks for sharing your part numbers and great 👍🏿 video

[@Dicks4x4Garage]

Thanks Brother! Glad it could help. What are you working on over there?

[@King87brougham51]

1987 Chevy caprice classic brougham 5.3 vin T out of a 2004 gmc I just got my fuel kit in today my pcm was flash the other day

[@Rays_Bad_Decisions]

Cool!

[@MrJoelopez13]

Nice 👍🏻 video

[@nickhattler8236]

Looks like you have a plan to keep 'the squirrel' at bay. I think you and your viewership will be happy to see a start to finish series like this. Good on ya!

[@Dicks4x4Garage]

Thanks brother, appreciate you watching. That Squirrel is dangerous! Say it with me, no Craigslist!!... Ha Ha. Running and driving is the goal! Hopefully soon.

[@dylankujawa4199]

So glad your back on the squarebody builds, only KZbin channel I religiously follow

[@Dicks4x4Garage]

Me too, I have really been enjoying this build again. I appreciate you watching and commenting!

[@jimgreen7767]

The guitar riff is bad ass

[@codyreeves7667]

Thank u for the effort man. Doing k5 5.3/sm465

[@Dicks4x4Garage]

No problem! I had the same set up in my K5! kzbin.info/www/bejne/fIWyZaZnp9WFbck

[@bobbyspence4697]

Awsome video, keep tnem coming !

[@Dicks4x4Garage]

Thanks brother!

[@70656jt]

@@Dicks4x4Garage i like the music too, sounds kinda like MetallicA at the beginning.

[@jeffbowen2072]

Hey I know this was a long time ago. Your videos help me a ton. I did the exact set up as you did for my ls swap. Having issues with the fuel gauge. When it’s out of the tank the float shows on the stock gauge. When I drop it in it pegs over fuel. I have. It’s sender and tank ground maybe length of stock sender lever is not good for the baffled tank or something. Just seeing if you had insight on potential issue thanks.

[@ballingonabudgetlsbuilder5930]

Dope ass music and always cool modz

[@Dicks4x4Garage]

Thanks brother!!

[@truedeadman]

Nice stuff man

[@Dicks4x4Garage]

Thanks Brother, as always I appreciate you watching!

[@6bt_str864]

Great coverage, and Straight to the point one avenue for anybody looking to do this, I been trying to convince a buddy to stay away from the inline pump, and stick to in tank for same reason s , safe to say he got this forwarded to him. 🤘 From central FL. Edit: I've got a RWD shortbox step side 76 (currently great running tpi350/700r4) but the cab is roached pretty much, wished you could find a cab for these on Eastern FL coast (good luck) I'd save it from scrapper no one wants due to amount of cab rot. Great video . And looking forward to seeing others

[@Dicks4x4Garage]

Thanks Brother! Happy to hear another one got saved!

[@pmotorsports8276]

Buy extra in line pumps and sell them to him when he calls you because he broke down.

[@vaughnsterboardbuilders]

Great video ! Helped a bunch on my lq4 I put in my 83 suburban , what did you use to cap off the vaper evap line on the fuel pump Assembly ?

[@josh29356]

Love the videos man i am thinking of doing a ls in my 79k10 i have done a ls in a 89 c1500 with a 5 speed but i sold it i am more of a 4x4 guy...so i believe i am going to try and tackle it one more time on my k10 ...

[@Dicks4x4Garage]

Thanks Josh! I say do it!

[@WIDESIDE72]

I parted out an 82 suburban with a 6.2 diesel yeas ago and hung on to the fuel tank for years. It looks like the same tank you bought. Unfortunately it is square and too large to fit in the rear frame of a swb truck. I previiusly builts a swb truck and used a 72 blazer tank but since i am going LS this time, it wont work, as the sender hole is too small and it isnt baffled. It looks like i am going with an 87-99 Jeep wrangler tank and a sender for a 92-94 S10 blazer sender with EP381 pump.

[@stoneyswolf]

Lol. I got an S10 cheap 5 years ago that needed a fuel pump. I went super cheap and ordered a 255 straight from China for 9 bucks plus 5 shipping. Pump only not the whole module. Took over a month to get. 5 years and 30k later that thing is still going strong. My sending unit crapped out 3 years ago I don't want to fix it because I would need the whole unit it's cheaper than buying the sender only if you believe that.

[@aaronmaclean4464]

Great and informative video, sweet tunes and good parts. Thanks a ton!

[@Dicks4x4Garage]

Thank you brother!

[@kountrylr23]

What did you use to mount the lines to the frame rail?

[@onemanoperation5459]

Hey Dave, thanks for such a great video. I do have a question regarding the fuel pump replacement you’d done, is it because you have a 40gl tank and the sending unit was meant for a 31Gl? I’m not doing a Ls swap on my 73 c30 crew cab, I just upgraded my 454 to 468 and I am have happy with the results. I appreciate your time brother sharing your knowledge to all of us square body addicts...👍🏻👊🏻

[@WIDESIDE72]

EagleTeAm iPro the depth of the tank is what affects the sender. If the tanks are the same depth there wont be any issue.

[@BruceLee-xn3nn]

My 2002 7.3 superduty has fuel pump on frame rail under driver side. I got over 200,000 on that pump. Exhaust pipe is on other side of my truck so maybe don't mount your pump close to muffler. Or have an aluminum heat shield.

[@samspeed2531]

Have you ever had any over pressure issues with the filter?

[@gamerjoe9471]

What fuel strainer did you use?

[@rezzgoatrising1829]

Awesome vid as always. Question, have you made any videos on hei distributor timing and installation?

[@Dicks4x4Garage]

REZZGOATRISING Thanks brother! I haven't, but did you have a specific question about it?

[@Jones4Dragon]

What is the part number for that ac delco pump?

[@mikes7405]

thanks for the video. Even got the links! You da man!

[@Dicks4x4Garage]

Thanks for watching!

[@mikes7405]

well, 11 months later and I am getting real close to first fire up! 68 firebird with 02 camaro ls1 swap. ordered your parts list, minus tank and pump, worked great. thanks again

[@rmontoto2435]

Would this set up work for a El camino?

[@Samuel-li9nk]

I like how he says oww then 5 seconds later with cuts bandaids on knuckles.

[@Dicks4x4Garage]

Happens!! Ha ha

[@jeffsmith350]

I won't to run an automatic. I have a Bad knee . Let me know thanks

[@mikek771]

If found it easier to use silicone fuel lines with push lock connectors. Way less hassle.

[@lsu614]

Don’t this truck intakes have a factory regulator built in?

[@The_Bored_Farmer]

I'm thinking about ls swapping my bullnose f150 or am I stupid 🤔 😕

[@mrmidnight32]

Does that filler neck fit under the bed and feed through the OEM filler port? Or do you have to cut the fenders or bed to add a filler location? Only thing keeping me from buying this blazer tank is people saying you have to cut the bed. Also is this the 30 or 25 gal model?

[@Dicks4x4Garage]

30 gal. If you go to 3:57 in the video link, you can see what I did. I had another old bed and overlayed it where I cut. Cutting was unnecessary but the bed was pretty busted anyways. kzbin.info/www/bejne/bmHJgX95i8uLj6s

[@mrcheco1810]

Hi, one question... What do you do with the return fuel line coming out from the fuel rail?

[@Dicks4x4Garage]

This set up is for a returnless rail, for a regulated rail, you would run a feed, and return from the sender to the rail, with some kind of inline filter on the feed line.

[@edwardpowers219]

Lol when you'll installing that pump brother

[@juanfo7307]

Que facil para los gringos nada mas pasan la tarjeta y al dia siguiente cae todo en la puerta de la choxa. Jps aqui abajo todo es parir adaptado

[@aliakrawi9945]

Good video ,, I'm working on 95 Tahoe with 2001 5.3 as first project,, could you please tell me some info about the swap?

[@Dicks4x4Garage]

Thanks, What kind of questions do you have?

[@aliakrawi9945]

Thanks for replying ,, did the 5.3 engine fit with the same transmission? ,,Should I change the fuel lines or keep the factory? Finally what about the gauges? if I wanna keep the stock cluster what should I do to make all lights and gauges work ? Thanks again!

[@suzuki06g]

Nice job!, got a '84 K5 Blazer (old Military CUCV) that I'm looking at doing a LS swap, so I will be watching your progress. Just wondering why you needed to swap the fuel pump? Is it because the stock '87 TBI pump didn't have enough pressure for the LS system?

[@Dicks4x4Garage]

Thank you! Yes, the TBI pump does not have enough pressure.

[@deankay4434]

The TBI fuel system runs at 13 PSI of pressure, while the "LS" based engines run at 54-60 PSI. My donor 2003 Tahoe 5.3L has a return type system, which means there is a fuel pressure regulator at the intake manifold and it maintains 54 PSI for the injectors. In this video, he has a return-less fuel system with one line at the injector rail. The pump supplies a volume of fuel and if it is enough, it will provide the correct pressure. He is using the Corvette fuel filter that has a pressure regulator built into it. The fuel that is not used by the engine is returned to the fuel tank, but held at a constant pressure to operate the engine correctly while at idle to wide open throttle. PSI has to correct to injector to supply enough fuel under any engine load, but as speed increases, you use more fuel. This is where volume come in. Without enough volume, the engine will perhaps starve at higher PRM's, not run any faster, misfire and become lean. This can cause damage as a lean fuel mixture become much hotter in the combustion chamber. Hope this helps. Buy the best pump as the truck comes with an ACDelco from the factory, just a newer type to correctly provide the pressure required. (An EP339 should be a good one. It's 44mm O.D. with 41mm turbine rotor with cnc machined ramp inlet with updated vapor vent hole and uses strainer / sock type filter p/n TS38 / TS1015. Check RockAuto) Note; pumps outlet slides into metal pipe to seal and comes with connector & harness. Be safe and do not use incandescent lights while working on your fuel system as if dropped, they will spark and also too hot. Be safe, hope this helps.

[@Dicks4x4Garage]

Well said brother!

[@deegan727]

You have a return less fuel rail right? My 02 LQ4 has a return. So I will have to run a pressure and return all the from the tank and back right and use a standard filter? Also What is the rating on that pump? I plan to have about 500HP at the flywheel.

[@Dicks4x4Garage]

Yes, your regulator should be on the rail, so 2 lines, regular filter. This pump is for a stock application, it would support a smaller cam, but once you step up to something that needs larger injectors a higher volume pump should be used.

[@trentonburge5662]

What is your fuel fittings part numbers for everything you used

[@Dicks4x4Garage]

Trenton Burge in the video description.

[@swervinrigg209]

Would that sender fit the side mount tank ? I hate the inline fuel pump

[@Dicks4x4Garage]

It might be too tall. You could get one specific for your truck, any of them after 87 should be just like the one I got. Just remember the tank I got was newer than 87 so it is baffled.

[@REDXIII1331]

Out of your part list is shy of what you mention toward the end of the clip.. are ### 640830/20 needed??

[@REDXIII1331]

NVM dick I found out my problem with the last two fittings. I am still waiting for the tank pump to arrive and did not notice the fittings 830/820 are for my tank nothing else up heading to the front XD. Love the films keep up the hardwork

[@thdevilmancometh]

Nice job, but for 300+ in materials I doubt this is for most guy's. The one link said the hose was a 100 alone.

[@angiesmith9196]

If you can't afford 300$ to properly and more importantly safely run your fuel system, you can't afford to do an LS swap. Besides he's replacing the entire system tank and all. Deduct over $100 if you reuse your tank and more reusing existing fuel lines

[@clutchszn9266]

are you going to change the wheels and tires on goldy?

[@Dicks4x4Garage]

Eventually I would like to go with an aftermarket custom wheel with less back spacing so they stick out further.

[@jarodbookout210]

Did your intake come as returnless? Mine has a return on it and I was wondering why.

[@60AcresandaDream]

i think he has a trailblazer ss intake manifold. i just ordered all the parts he mentioned. i has to get a summit AN -6 cap for the 5/16 return line. i guess the filter he is running is what you want. so i had to figure out how to make my LQ4 intake returnless also.

[@jeffsmith350]

What transmission are you running? I have a 86 k20

[@Dicks4x4Garage]

I'm going to be using a 4L80E.

[@ryanhicks942]

Does your intake not have a return line on it for fuel? I see you are running a corvette style regulator.

[@Dicks4x4Garage]

No, it is returnless.

[@gerardolopez5875]

@@Dicks4x4Garage @ that fuel pump equals the stock returnless fuel pump??? Or its like a regular return system fuel pump????

[@mrslam49]

What fuel rail did you use? I thought truck rails had a return on them. Mine does, but it's an early one. Curious if they changed or you changed it to something else?

[@UCanDoIt2Mike]

I also have a fuel rail with a built-in Return connector (2001 Silverado 5.3L). I believe we are going to need to cap that off and possibly do something with the built-in regulator. I will have to study it more. Another solution is to pickup a used Rail like Dave's ($$). Thinking Cap On...

[@UCanDoIt2Mike]

So it appears about 2008, they changed the Fuel Rail setup to the Return-less style. The older style with the Return port has a built-in Regulator, so the pressure regulation is happening in the rail and excess pressure is being relieved at the rail and purged through the Rail's Return port. The newer style (about 2008) without a Return port assumes that the Regulation is being done prior to the fuel being supplied to the Rails (1) sometimes in the tank and (2) the corvette style using a Filter/Regulator. The Corvette Style Filter/Regulator has high pressure fuel coming in and (1) supplies the Fuel Rail with reduce 60PSI fuel and purges the excess fuel back to the tank. **** The Corvette style Filter/Regulator setup is what Dave has outlined in this series. Both system places about 60 PSI of pressurized fuel in the rails. So, I believe if we want to still use the older Fuel Rail, we could simply block off the second Return port on the Fuel Rail and be good. The built in Fuel Rail Regulator would have nothing to do and would not interfere. Just my 3 cents worth. Mike

[@Dicks4x4Garage]

Whats up brother! As far as my research got last night was that in 05 they started with the non return rail. It could have been 08 as Mike (UCanDoIt2) pointed out. I'm not sure if the rails are interchangeable, but I have a few truck intakes from both styles, so Ill compare them and let you know. Here is a link to a non return rail www.summitracing.com/parts/ado-217-1619/applications

[@Dicks4x4Garage]

Great Info Mike!

[@danbrunson1896]

You'd just run 2 lines from the tank to the rail. 1 main line and 1 return No need for the Corvette filter if you have a regulator on the rail

[@onemanoperation5459]

I just realized that your tank is a 31Gl. I thought you kept your 40GL tank from previous videos. Anyways, what fuel pump/ sending unit would you recommend for a 40Gl tank?

[@Dicks4x4Garage]

The tank from the previous video was a 31, but not baffled, I didn't want to modify the tank for a late model sender, so I got the baffled tank with the stock pump module set up. To break it down, I used a stock pump module assy for a Throttle body truck 87+ K5, and swapped out the pump for a high pressure unit ep381 for the LS. If you want to go this route but with a 40 gal, just order the pump module for that tank set up, pre 87 for carb no baffle needed, 87+ baffled tank and the module has the electric pump in it.

[@onemanoperation5459]

Awesome man. I appreciate your time.

[@Dicks4x4Garage]

No problem!

[@jess6972]

Did you use aftermarket fpr with stock intake. How did you plumb it

[@Dicks4x4Garage]

It’s in the video, regulator returns to the tank with a feed, and an out to the fuel rail. This set up won’t work if your regulator is on the rail.

[@jess6972]

@@Dicks4x4Garage i see that now thank you. Will just have to use the stock fpr thats on the rail till i upgrade my intake or rails. Appreciate it

[@jess6972]

Gosh darn return rails. Going with a returnless tbss intake and rails returnless

[@scottschmidt5196]

Hey dick , what is the part number on the high pressure fuel pump?

[@WIDESIDE72]

Great info but a few tips. Don’t screw with the camera while you’re filming. Stop and start over if necessary. You didn’t mention the part number. (You started and said “EP...) but got side tracked on why mounting it in the tank is best). Im sure its an EP381. I hope you can take “constructive criticism”. That is why i started my comment by mentioning that it is otherwise good info.

[@Dicks4x4Garage]

Thanks & Thanks for watching!

[@edwardpowers219]

Hey bro who sings that song

[@Dicks4x4Garage]

Which one?

[@duanewhite3184]

Vent and return you are better off hooking up an electric fuel pump do the pile of s*** that's in the tank

[@minicranky98]

What's the part number for the ac delco pump?

[@Dicks4x4Garage]

Part numbers are in the video description.