Harmonic balancer
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Joined: Jan 2007
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Harmonic balancer
My son has an 85 firebird 2.8 that is shot now and we are thinking of going with the 3.4 after reading on here, it has a five speed in it would I need to (1 )change the flywheel to a neutrally balanced one (2) use the 2.8 harmonic balancer or get one for the 3.4 (3) do you use the 2.8 injecters or do you have to get 3.4 ones I read in the swap boogie he put 3.4's in but noone else has siad if they did.
thanks forthe help
thanks forthe help
Senior Member
Joined: Jul 2003
Posts: 692
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From: Bellingham, WA
Car: 1989 RS
Engine: 3.1L + .060" overbore
Transmission: 700R4
Axle/Gears: 4.11, Auburn LSD
1) Yup, get a neutrally balanced flywheel
2) I would get one for the 3.4 just to be sure
3) 3.4L injectors aren't required to run, but to run well....
2) I would get one for the 3.4 just to be sure
3) 3.4L injectors aren't required to run, but to run well....
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Joined: Jun 2002
Posts: 6,819
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
neutral flywheel/flex
3.4 balancer(your 2.8 one may be balanced with the crank)
3.4 injectors (it can run on 2.8's, but its lean)
3.4 balancer(your 2.8 one may be balanced with the crank)
3.4 injectors (it can run on 2.8's, but its lean)
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