Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

V6 to V8

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Old 04-26-2010, 03:50 AM
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Location: Mt. Pleasant, Michigan
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Car: 1985 Monte Carlo SS
Engine: 5.0 305 H.O.
Transmission: 200-R4
Axle/Gears: 3.73 Posi
V6 to V8

im looking thru the fourms, i used the and i can't find anything, but i work at advance auto, and im showing in 1991 they used the same computer for the V8*in the baseline firebird* as they did in the v6, is this tru, or am i poking at something that the computer is wrong on? also ive got all the parts for my v8 swap, just need to find a motor and trans, im betting if the comps are the same, then wouldn't the hookups for the 91 v8 be the same?
Old 04-26-2010, 02:25 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
The computers were the same. The PROM and harness were different.




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