Join Date: Aug 2011
damanx is offline
Re: A few 2.8 - 4.3 TBI swap questions.
Correct me if I am wrong, but, if what are planning is to put the 4.3 throttle body on top of the stock 2.8 intake, I don't believe it will work because the bores and butterflies on the 4.3 throttle body are bigger than the holes in the 2.8 intake.
1985 GMC S-15 Gypsy ext cab.
3.4l, Edelbrock intake, a 4.3l throttle body controlled by an '88 TBI ECM. 700R4 with 3.73 rear. Real time tuning using a CF-30 Toughbook with a Moates Ostrich 2 emulator.