ZZ4 block and fuel injection (TBI)
06-15-2006, 02:20 PM
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ZZ4 block and fuel injection (TBI)
Can a GM TBI system be easily hooked up on a ZZ4 Short Block? I mean, is there anything in regards to sensors, etc, on the "newer" fuel injection Gen 1 engine blocks that are missing on the ZZ4 block?
06-15-2006, 02:45 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
That won't be your problem. The two main issues (other than exhaust and fuel flow) are mounting the TBI manifold on the '86-earlier intake bolt pattern of the ZZ4 aluminum heads, and PROM tuning for the increased displacement and more radical cam.
TBI forum is probably the better place to look.
TBI forum is probably the better place to look.
06-15-2006, 06:59 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Originally Posted by Casey_Butt
Can a GM TBI system be easily hooked up on a ZZ4 Short Block? I mean, is there anything in regards to sensors, etc, on the "newer" fuel injection Gen 1 engine blocks that are missing on the ZZ4 block?
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