My 68 C10 Blowen LS2

[68 c10 ls2]

Well got the motor back in yesterday, hooked everything up today. Fired it up and................................................................................................. .................................................................................................... ................... ran smooth. No antifreeze from the block in the cylinders this time. Did find a new problem though, the intercooler that is in the supercharger is leaking.! So i guess off comes the superchager to get the leak fixed. I think there is something/someone that doesnt want me to get this thing running and on the road this year!!!!!

[VA72C10]

sorry bout the issues...but it'll be fun when it's all together

[franky69c10]

sick

[68 c10 ls2]

Originally Posted by franky69c10

sick

THANKS

[eagleuh1]

Kiwi, why would you want to eliminate the electronic throttle? It makes setting up cruise control real easy, can be tuned how you like it. And the newer throttle bodies are pretty good size.

[Kiwi]

68 C10 LS2 (or anyone who knows),

It has been a busy weekend as I am in the midst of getting a brand new LS3 (426 hp) pulled from a 2010 Camaro SS. I learned that GM sells a "run kit" that includes most everything needed to wire a new LS engine to an older vehicle including a proper computer, wiring harness, and a special gizmo that attaches to an old-school throttle that converts it for use with a drive-by-wire throttle system. I plan on installing the engine in my 1971 C10 but have a few questions:

1. What motor mounts did you use ... and are you happy with them?

2. Did you retain the factory A/C pump from the new engine ... and if so, were there any clearance issues with the stock frame?

3. Did your TH400 bolt up to the back of the new EFI engine without problems?
(I already retrofit a TH700-R4 to my truck and I'm hoping that the trans will bolt up to the new LS3 engine without problem.)

John

[Kiwi]

Here is some more LS engine swap info that I have found ...

LS controller kit include the following items:

19166573 Engine Harness
12576410 Mass Air Flow Meter
19166574 Mass Air Flow Meter Mounting Boss
10367117 Accelerator Pedal Assembly
12581966 Oxygen Sensor (Qty 2 Per Kit)
15156588 Oxygen Sensor Mounting Boss (Qty 2 Per Kit)
19171935 Instruction Sheet

https://store.gmperformanceparts.com...!--19201327-->

+++++++++++++++++++++++++++++++++

Motor mount kit to swap a new LS engine into an older musclecar/truck:

http://paceperformance.com/index.asp...OD&ProdID=9072

[68 c10 ls2]

Well i finally got the motor running, took it out driving and the tune is WAY OFF!!!! I cant give it more than 1/3 throttle and the gas mileage SUCKS!!! I mean its so bad i drove it 10miles and burned 6 gal of E85 (but it will it 10 psi of boost at 3000rpm). So now where to take it for the tune!?!?!?!

[Jacfourteen]

Originally Posted by 68 c10 ls2

Well i finally got the motor running, took it out driving and the tune is WAY OFF!!!! I cant give it more than 1/3 throttle and the gas mileage SUCKS!!! I mean its so bad i drove it 10miles and burned 6 gal of E85 (but it will it 10 psi of boost at 3000rpm). So now where to take it for the tune!?!?!?!

That's too bad about the tune being off, but at least it's running

[tubbedII]

Originally Posted by 68 c10 ls2

Well i finally got the motor running, took it out driving and the tune is WAY OFF!!!! I cant give it more than 1/3 throttle and the gas mileage SUCKS!!! I mean its so bad i drove it 10miles and burned 6 gal of E85 (but it will it 10 psi of boost at 3000rpm). So now where to take it for the tune!?!?!?!

10 miles per 6 gals? Ouch...but doesn't E85 burn as fast as regular alcohol? If that's true, I'd imagine you only getting a little bit more than this after the tune, especially when you are able to floor it!

[68 c10 ls2]

Originally Posted by tubbedII

10 miles per 6 gals? Ouch...but doesn't E85 burn as fast as regular alcohol? If that's true, I'd imagine you only getting a little bit more than this after the tune, especially when you are able to floor it!

I dont know about alcohol or how gas mileage works with that but to run E85 i do know its 30% more fuel than reg gas. Before i was getting about 15-16mpg with the old setup so i would guess that i shouldnt be less than 10mpg.

[68 c10 ls2]

Well here you go guys and gals. Pics of the new motor setup. I still have to make a new intake tube so it stops sucking hot air from the radaitor. Sorry no video's of the motor running since the tune is so far off.

[ed2552]

First time in this thread. Wow, truck looks great, too bad you're having so many issues. Where in MN are you at? I'm by fairfax. I think you're almost best off working your own tune out with EFI Live or HP Tuners. That way it's how you want it, and you can tune it on the street, track, dyno, etc and not have to take it to a guy every time.

[68 c10 ls2]

Originally Posted by ed2552

First time in this thread. Wow, truck looks great, too bad you're having so many issues. Where in MN are you at? I'm by fairfax. I think you're almost best off working your own tune out with EFI Live or HP Tuners. That way it's how you want it, and you can tune it on the street, track, dyno, etc and not have to take it to a guy every time.

Thanks. I live in Forest Lake. I was thinking about buying one of the tune setups but i have no qlue how to do any of that stuff. That and $500-$700 for the setup is a little pricie for me. I think getting it tuned once would be a lot cheaper. Since i am running E85 i will have the biggest HP tune put in it once and leave it.

[Hart_Rod]

Looks sweet! Are you running a boost referenced fuel pressure regulator?

[68 c10 ls2]

Originally Posted by Hart_Rod

Looks sweet! Are you running a boost referenced fuel pressure regulator?

I'm running a factory 02 regulator that is built into the fuelrail from magnison. 58psi at idle and 62psi while driving. Pleanty of pressure for E85.

[VA72C10]

very nice!!!

[68 c10 ls2]

I just want to thank everyone that has commented on my thread!!!! All of you on this site have given great support to my project. I would have given this whole thing up a while ago and moved on to something different if it wasnt for all of you (so you all owe me the money i have dropped into this thing now!!!!! LOL)!!!!!! Thanks again!!!

[ed2552]

We're here to help!

[68 c10 ls2]

Well i havent logged in in almost a month, been very busy. So heres the update on the truck. I bought HP tunners and now able to send the tunes via e-mail to my tuner in Vegas. I got a new tune finally yesterday, it runs a 1000x's better but still no where near its full power. I can now give it full throttle and the highest boost level ive seen so far is 16 psi!!! I dont know of any root style blower that hits that high of boost (a least i havent heard of any).

[Hart_Rod]

Originally Posted by 68 c10 ls2

Well i havent logged in in almost a month, been very busy. So heres the update on the truck. I bought HP tunners and now able to send the tunes via e-mail to my tuner in Vegas. I got a new tune finally yesterday, it runs a 1000x's better but still no where near its full power. I can now give it full throttle and the highest boost level ive seen so far is 16 psi!!! I dont know of any root style blower that hits that high of boost (a least i havent heard of any).

Great news. What are your thoughts on HPTuner? Where did you purchase it?

[68 c10 ls2]

Originally Posted by Hart_Rod

Great news. What are your thoughts on HPTuner? Where did you purchase it?

Hp Tunners (i bought the PRO) is a very easy system to use. Well if you dont have to do the tune. I started looking through me tune on there and OMG i wouldnt even know where to begin to change my tune. I bought it from Summit Racing. i think there is a price lock on it. i looked every where and it was all the same price unless it was used.

[Hart_Rod]

Originally Posted by 68 c10 ls2

Hp Tunners (i bought the PRO) is a very easy system to use. Well if you dont have to do the tune. I started looking through me tune on there and OMG i wouldnt even know where to begin to change my tune. I bought it from Summit Racing. i think there is a price lock on it. i looked every where and it was all the same price unless it was used.

Do you have a part number? The CC looks solid! What are the plans?

[68 c10 ls2]

Originally Posted by Hart_Rod

Do you have a part number? The CC looks solid! What are the plans?

Summits part number is HPT-6021. The cab is okay. The rockers and the floor part that was added is rusted and needs to be replaced. By the time i get done with this cab it wont even look the same (shorten it 2in and put suburban doors all the way around). it will end up on my frame and i m going to shorten the bed from an 8 foot to about 5.5 foot box. all custom.

[68 c10 ls2]

oh and these are some pics of the crew cab i picked up.