Block casting number
03-03-2009, 12:07 AM
#1
Racer
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Block casting number
can anyone tell me if a block casting number of 370010 is a 2 or 4 bolt main? The vin (1974 corvette) 5th letter is a J, indicating this is A L48 car, and i thought they were all 2 bolt mains, bue the owner says the cating number indicates a 4 bolt main..
03-03-2009, 07:22 AM
#2
0010 could be either 2 bolt or a 4 bolt, it depends on how the final machining was done. The casting number is the same for both.
A '74 L48 is a 2 bolt, a '74 L82 is a 4 bolt.
A '74 L48 is a 2 bolt, a '74 L82 is a 4 bolt.
03-03-2009, 08:52 AM
#3
Le Mans Master
Spot on!
