350 TBI To TPI Conversion
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Joined: Mar 2010
Posts: 177
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From: St. Louis, MO
Car: 1986 Trans Am/1988 Camaro Iroc-Z
Engine: 305 TPI/350 TPI
Transmission: 700r4
350 TBI To TPI Conversion
I have a 86 T/A with 305 TPI..... I have been having trouble with the motor lately and decided to replace it... I recently came across a rebuilt 350 TBI but I want to keep my emgine tpi is der anyway I could use my tpi off my current engine and put it on the 350 tbi or is this idea unrealistic..... Either way I'm probably still going to use the 350 tbi because it's a good running motor but I just really wanted to keep my tpi set up..... Guys please give me some feedback
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
'86 had the intake mount bolt pattern with all of the bolts at 90 degrees. 350 TBI's had the center two bolts on each side at 72 degrees, the rest at 90 degrees. Other than that, there isn't any issue putting TPI on a 350 TBI.
You should get a 350 knock sensor and module, and 22 lb injectors would be a good idea (but probably not necessary).
You should get a 350 knock sensor and module, and 22 lb injectors would be a good idea (but probably not necessary).
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