4 bolt main?

[LONGHAIR]

Originally Posted by 1BadSS

To the original poster of the thread. Have a look at the balancer if it's 11-12" tall, by 2" thick. Odds are about 75% that it's a 4 bolt main. Don't hold me to it though.

The "big" balancers are 8" diameter, but I wouldn't bet on any external clues to a 4 bolt main block.

The old "they say" (whoever "they" are) used to believe that a 4 barrel carburetor was the clue. "If it was factory equipped with a 4 barrel, it had 4 bolt mains."......I wouldn't bet on that one either, even if you could be sure that a 30 year old engine did indeed have a factory 4 barrel.


LIke I said before, it's not important anyway.....