70 chevy truck i need help please - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gr8one · 08-18-2011, 06:55 PM

ok heres the deal i have a 1989 c3500 454 tbi with a turbo 400, im going to pull the engine and put it in my 1970 chevy. SHOULD i go with the tbi or carb. the thing i need help with the tbi should i pull the complete wiring harness and put it on my 70. or just the engine harness and required parts. (ecm, 02 sensors aand so on). has anyone ever done this conversion?

Andy4639 · 08-18-2011, 07:50 PM

You will need everything that plugs up to the computer. Plus all gas lines and return lines to tank.

trkfrk · 08-18-2011, 08:37 PM

Your going to get both opinions. They both have their pros and cons. I would go with EFI. That direction is a MUCH more work but worth it.... Good luck!

Hubscrub · 08-18-2011, 08:46 PM

Carbs are super easy and still reliable as always, gas line, hot wire for choke, couple vac. lines, throttle cable and go.

Longhorn Man · 08-18-2011, 08:56 PM

Only you can answer this.
I'll leave my opinion out of it. Look at the pros and cons that you are already aware of, then, go search the internet on what you'll need to do to make this all work. If you plan on engine mods, look into pros and cons of either induction system with the planned mods.
Don't forget a very realistic budget. What ever you think it'll cost, double it.

gr8one · 08-19-2011, 12:42 PM

thanks to everyone that replied

GASoline71 · 08-19-2011, 07:29 PM

There are better fuel injection systems out there then TBI. But again... that is MY personal opinion.

I'm also a carb guy too... So there ya have it... just another opinion.

Gary

dukcaln · 08-19-2011, 09:01 PM

carb it....... more performance options later and easier to work on when and if needed... long run more cost effective to go carb I would say

08-18-2011, 06:55 PM	#1
gr8one Registered User Join Date: Nov 2004 Location: Fort Meade Fl Posts: 184	70 chevy truck i need help please ok heres the deal i have a 1989 c3500 454 tbi with a turbo 400, im going to pull the engine and put it in my 1970 chevy. SHOULD i go with the tbi or carb. the thing i need help with the tbi should i pull the complete wiring harness and put it on my 70. or just the engine harness and required parts. (ecm, 02 sensors aand so on). has anyone ever done this conversion?

08-18-2011, 07:50 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: 70 chevy truck i need help please You will need everything that plugs up to the computer. Plus all gas lines and return lines to tank. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

08-18-2011, 08:37 PM	#3
trkfrk Registered User Join Date: Jul 2010 Location: Las Vegas, NV Posts: 969	Re: 70 chevy truck i need help please Your going to get both opinions. They both have their pros and cons. I would go with EFI. That direction is a MUCH more work but worth it.... Good luck! __________________ Mark 1972 C10 SWB LS1/T56 6 speed trans/4:56 posi with 5.5"-7" static drop/Boss 338 Wheels 18"x20" My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=424609. My first start up http://youtu.be/R899YQ1OcjU

08-18-2011, 08:46 PM	#4
Hubscrub Cruzin Join Date: Dec 2009 Location: on the road Posts: 2,835	Re: 70 chevy truck i need help please Carbs are super easy and still reliable as always, gas line, hot wire for choke, couple vac. lines, throttle cable and go. __________________ Lime Wife's 67https://www.google.com/url?sa=t&rct=...wZEMODaS2d94u8 Back to the Fifties 59 https://www.google.com/url?sa=t&rct=...NAeStpydfrcj_U Proverbs 3:5,6 "Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything."Charles Kuralt In memory of our first baby daughter, daddy and mommy love you. Danica Grace 6/26/14

08-18-2011, 08:56 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: 70 chevy truck i need help please Only you can answer this. I'll leave my opinion out of it. Look at the pros and cons that you are already aware of, then, go search the internet on what you'll need to do to make this all work. If you plan on engine mods, look into pros and cons of either induction system with the planned mods. Don't forget a very realistic budget. What ever you think it'll cost, double it.

08-19-2011, 12:42 PM	#6
gr8one Registered User Join Date: Nov 2004 Location: Fort Meade Fl Posts: 184	Re: 70 chevy truck i need help please thanks to everyone that replied

08-19-2011, 09:01 PM	#8
dukcaln Registered User Join Date: Jul 2011 Location: vacaville ca Posts: 1,304	Re: 70 chevy truck i need help please carb it....... more performance options later and easier to work on when and if needed... long run more cost effective to go carb I would say __________________ 04 CHEVY LLY LS DURAMAX 4WD. MODS TO FOLLOW, EFI LIVE, BUILT TRANS, LBZ MP, LIFT PUMP *SOLD* 1972 chevy c10

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