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wyorm1mechenic
02-03-2005, 10:28 PM
one question....will a 5.0 pontiac engine from a 88 firebird bolt up to a 88 chevy 4x4 pu???? what changes are nessecary???/thanks Terry

wyorm1mechenic
02-03-2005, 10:28 PM
one question....will a 5.0 pontiac engine from a 88 firebird bolt up to a 88 chevy 4x4 pu???? what changes are nessecary???/thanks Terry

BVR421
02-04-2005, 01:32 AM
there was no Pontiac motors produced for Firebirds after 81, just Pontiacs with various GM motors, Firebird in 1988, it is a 305 chevy motor

Jeff Walker
02-04-2005, 07:07 AM
Yes it will bolt up as they both are Chevy engines. You might have to use the intake and TBI injection from the pickup though.

Jack Ferris
02-04-2005, 07:20 AM
Some of the 305's I've seen have a sizable weight on the flexplate and when its used on a 350 causes a nasty vibration. Im guessing 305's are externally balanced?

Jeff Walker
02-04-2005, 07:43 AM
In 1988, I believe they changed the balancing on all SB chebbies. They did this a the same time they went to the one piece rear seal. If you stay within the same years the 305 and 350 flywheels interchange.

gotpontiac
02-04-2005, 08:16 AM
I put a 1989 305ci firebird engine in my 1983 truck.
Bolts right in, had to swap the flywheel for a new
flex plate, modify my `83 q-jet intake to fit the
heads, used my 83 distributor(w/MSD of course)truck runs great.