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both. in the earlier days the two barrel models were usually two bolt main and the 4 barrel models were four bolt main, but even that wasn't necessarily so.
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∙ 13y ago
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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
Does a 1972 350 Ci truck engine have a 2-bolt or 4-bolt main?
should be 4-bolt
Is the 1991 350 Chevrolet half ton a 2 or 4 bolt main engine?
That would be a 2-bolt main in that truck for sure.
Can a 4-bolt main 350 engine fit in an 88 silverado 1500 with a 2 bolt main engine?
No it wil not. You will have to remove the 2 bolt engine out of the truck and then replace it with the 4 bolt engine. 2 engines will not fit in one vehicle silly wrench puller.
Is a 1988 Chevy k1500 with a 350 a 4 bolt or 2 bolt main?
If its a 1/2 ton it will be a 2- bolt main, You can run the engine # if you need to know for sure. But i'd bet its a 2-bolt
What year is a 350 Chevy engine with casting no 3970010 and 13w221249?
That engine could be anywhere from a 1969 to 1972 350. Some of them were 4-bolt mains and some were just a 2-bolt main engine.
Is 350 2 bolt or 4 bolt?
It can be either one, Need to run the engine numbers or remove the oil pan to know for sure. GM. made 2-bolt and 4-bolt main 350 engines.
What do you torque the main bearings down to in a 1991 Chevy 350 2 bolt main engine to?
70 ft lbs
Gm engine casting no 3870010 what engine is it?
350 2 bolt main..i have this in my stock original 1977 Corvette L48
What year is a 350 Chevy engine with casting number 3970014?
3970014 350 69-77 Pass,Chevelle,Camaro, Nova,Monte Carlo 2 or 4 bolt main 3970014 350 69-79 Truck 2 or 4 bolt main 3970014 350 72 Corvette late '72,200 HP,255 HP 4 bolt main
Is engine 3970044 2 bolt or 4 bolt?
i have a engine with this # and its a 2 bolt main
Does a 1999 Chevy suburban 350 have a 2 bolt main or 4 bolt main?
1500--2 bolt, 2500 4 bolt
