Carb to EFI Swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

73C20 · 10-09-2005, 10:24 PM

I've been really toying with the idea of swapping the carb setup on my 73 for an EFI. My major questions at this point are:

1. What is the best option? TBI, MPFI, or TPI

2. Should I look for used parts and harnesses, or go with a Holley or Edelbrock kit?

3. Any recommendations on ignition systems?

4. Any advice or recommendations from those who have done this swap?

Right now the internals of the engine are stock. The engine has 42,000 original miles and has been parked for the better part of about 10 years. It has been started and driven on occassion, but not much. I would like to tear it down and inspect the inside. I think it would probably just need cleaned and honed. I've also thought about Vortec heads and a mild cam. Thoughts? The trans is a TH350, and I have had thoughts of replacing this eventually. This would be built as a driver, so insane amounts of horsepower are not a requirement, but I'm looking for something around the 350 horse range. So, what suggestions, advice, stories, or warnings do you guys have?

Matt

bagged74 · 10-09-2005, 11:25 PM

just buy this from me, and you will have everything and sove some $$$

I'll even throw in a free truck.

73C20 · 10-09-2005, 11:52 PM

Now that is a sweet setup. What did the TPI come from? Thanks for the offer, but I'm not sure what I would do with another truck. I don't have room right now for the one I have.

bagged74 · 10-09-2005, 11:55 PM

Its a camaro unit, I will sell the engine without the truck for $4K, the engine has been run for about 15 mins.

**Captkaos** · 10-10-2005, 11:33 AM

I am working on a how-to for this. It am going from Carb to TPI on my Jimmy. A complete running motor would be the simplest solution if you got the wiring and everything...

BTW, it is being "documented" here also: http://67-72chevytrucks.com/vboard/s....php3?t=170357

10-09-2005, 10:24 PM	#1
73C20 Registered User Join Date: Nov 2003 Location: Indianapolis, IN Posts: 82	Carb to EFI Swap I've been really toying with the idea of swapping the carb setup on my 73 for an EFI. My major questions at this point are: 1. What is the best option? TBI, MPFI, or TPI 2. Should I look for used parts and harnesses, or go with a Holley or Edelbrock kit? 3. Any recommendations on ignition systems? 4. Any advice or recommendations from those who have done this swap? Right now the internals of the engine are stock. The engine has 42,000 original miles and has been parked for the better part of about 10 years. It has been started and driven on occassion, but not much. I would like to tear it down and inspect the inside. I think it would probably just need cleaned and honed. I've also thought about Vortec heads and a mild cam. Thoughts? The trans is a TH350, and I have had thoughts of replacing this eventually. This would be built as a driver, so insane amounts of horsepower are not a requirement, but I'm looking for something around the 350 horse range. So, what suggestions, advice, stories, or warnings do you guys have? Matt __________________ 73 C20 42,000 Original Miles

10-09-2005, 11:25 PM	#2
bagged74 its just $$$$$ Join Date: Jul 2003 Location: OK Posts: 2,078	just buy this from me, and you will have everything and sove some $$$ I'll even throw in a free truck. Attached Images

10-09-2005, 11:52 PM	#3
73C20 Registered User Join Date: Nov 2003 Location: Indianapolis, IN Posts: 82	Now that is a sweet setup. What did the TPI come from? Thanks for the offer, but I'm not sure what I would do with another truck. I don't have room right now for the one I have. __________________ 73 C20 42,000 Original Miles

10-10-2005, 11:33 AM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	I am working on a how-to for this. It am going from Carb to TPI on my Jimmy. A complete running motor would be the simplest solution if you got the wiring and everything... BTW, it is being "documented" here also: http://67-72chevytrucks.com/vboard/s....php3?t=170357 __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com Last edited by Captkaos; 10-10-2005 at 11:33 AM.

10-09-2005, 11:55 PM	#4
bagged74 its just $$$$$ Join Date: Jul 2003 Location: OK Posts: 2,078	Its a camaro unit, I will sell the engine without the truck for $4K, the engine has been run for about 15 mins.



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