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I can't answer your question but I can say that my 260 hp 350 Mercruiser has 2 bolt mains and a 4 bolt rear main. Go figure! So I take it from your question that you also have 2 bolt mains with a 4 bolt rear main.
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∙ 11y ago
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How do tell four bolt main from two bolt main?
To tell if your engine is a 2 bolt main or a 4 bolt main. Turn the engine upside down on an engine stand. Next, count the number of bolts on each main bearing cap. if there are two, then its a 2 bolt main. And if there are4, then its a 4 bolt main. This applies to the three center caps. The front and rear are always 2 bolt.
Does a 1989 firebird 305 have a 4 bolt main and does it have a 1 piece rear main seal?
yes it does yes it does
What is better a 2 bolt main or a 4 bolt main?
4 bolt main
Does a 1999 Chevy suburban 350 have a 2 bolt main or 4 bolt main?
1500--2 bolt, 2500 4 bolt
Is a rebuild kit for 350 engine same for 2 bolt main as a 4 bolt main?
no cause a 4 bolt main has 2 extra bolts on each main
What is the difference between a 2 bolt main 350 and a 4 bolt main 350 Will a 2 bolt hold 500hp?
The difference between a 2 bolt main and 4 bolt main is how many bolts hold the caps that hold on the crankshaft. (A 2 bolt main has 2 bolts to every cap and the 4 bolt main has 4 bolts to every cap) A 2 bolt main should be able to handle 500hp as long as you don't push it above 5500RPMs.
Hot rod car do i want a 350 4 bolt main or 2 bolt main?
4 bolt their stronger better lasting
Was the 2000 3500 dually 5.7 l a 4 bolt main or 2 bolt main?
That would be a 4-bolt engine in that truck.
Does your 1975 Chevy truck have a 4 bolt or a 2 bolt main?
4
What year is the motor with the block number 10054727?
It was used in 1986 and up, some of them are 2- bolt mains and 4-bolt mains. They were NOTHING special. It does have a 1-piece rear main seal.
What are the specs on gm casting engine No10066036?
Goodwrench crate motor 350, Made in Mexico, 260 hp, 2-piece rear main, 4 bolt main caps.
Does a 1972 350 Ci truck engine have a 2-bolt or 4-bolt main?
should be 4-bolt
