V6 to 350 Engine Swap Question.
Thread Starter
Junior Member
Joined: Mar 2012
Posts: 49
Likes: 0
V6 to 350 Engine Swap Question.
I had a V.6 3.1L engine in my 1990 Pontiac Firebird. I am swapping to a Chevy Goodwrench 350 5.7L engine. The question I have is for the fuel system. The V6 had an electric fuel pump but the V8 has a mechanical fuel pump. What do I have to do to get it to work? Please respond as soon as possible. Any and all help is really appreciated. Thanks!
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: V6 to 350 Engine Swap Question.
If you are running a carb then you install a bypass fuel regulator on fuel line in engine bay to drop the pressure down
to required carb pressure and not use the mach pump
Or take the EFI pump out of tank and use the mech pump
to required carb pressure and not use the mach pump
Or take the EFI pump out of tank and use the mech pump
Last edited by vetteoz; Mar 4, 2012 at 04:35 AM.
Senior Member
Joined: Oct 2011
Posts: 944
Likes: 0
From: IDAHO
Car: 89 rs
Engine: 2.8 v6
Transmission: M/t
Axle/Gears: 5 Speed Manual
Re: V6 to 350 Engine Swap Question.
i plan on doing the same thing with a 350 that was in a GM suburban. mine is a MPFI v.6 3.1, also want in on this
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
