4-bolt main

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Jan 6, 2002 | 11:56 PM

Berlinetta

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From: Rhome, Tx

4-bolt main

Is a four bolt main block the same, besides the obvious difference, than a two bolt main. Will a four bolter bolt up okay to where a two bolter used to be? Thanks
Glenn

Jan 7, 2002 | 01:02 PM

five7kid

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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

Externally, they will be the same.

One-piece vs. two-piece rear main seal will cause some differences, but bellhousing, heads, engine mounts, etc., will be the same.