Are the LT1 engines a 4 bolt main?
chevrolet didnt want u to think that until they stopped making 4 bolts though 
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11-08-2007, 12:34 AM
#8
f body lt1 are 2 main, vette were 4 main and lt4 f bodies were 4 main, crate engines from gm were 4 main.
also read that some 97 and late 96 came with 4 main because gm had alot of crate motors for the 96 vette left over so they put 4 main blocks in some 97 f bodies
also read that some 97 and late 96 came with 4 main because gm had alot of crate motors for the 96 vette left over so they put 4 main blocks in some 97 f bodies
11-08-2007, 02:49 PM
#10
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It's a two bolt unless someone swapped your engine to a 4 bolt vette motor at some point down the line, or you received a warranty replacement motor from GM itself at some point.
All f-bodies came with 2 bolt, regardless of year.
All f-bodies came with 2 bolt, regardless of year.
11-08-2007, 03:23 PM
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Only way to know for SURE is to pull your pan and look at your main caps. Both 2-bolt and 4-bolt blocks have the same casting number (10125327) and are stamped "327" on the side of the block.
11-09-2007, 05:18 PM
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