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Can you tell if a engine is a 2 bolt or 4 bolt main by the block number?
Wiki User
∙ 12y ago
quick answer is NO, 2 and 4 bolt main engines both had the same casting numbers. you have to pull the oil pan to be 100% sure.
Wiki User
∙ 12y ago
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Is 8999289 a 4 bolt or 2 bolt?
If the number 8999289 is a casting number inside a bell the first number is a 3. Then the block that is in question would be a 4 bolt block with 4 main caps.
What is 6 bolt main 350?
It is a small block Chevy 350 engine with 6 bolt main caps.
What size Chevy engine has casting number 3999289?
Chevrolet 454 C.I Big Block 1973-79 2 Bolt Main
How do you tell if 350 has a four bolt main?
Pull the oil pan off and count the bolts in the main caps, 2 bolt main engines only have 2 bolts holding the main caps to the engine block. 4 bolt main engines have 4 bolts holding the main caps on.MAIN CAPS IS WHAT HOLDS THE CRANKSHAFT IN THE ENGINE BLOCK.
Can you put an LT1 350 engine crank and pistons in a 350 4 bolt main?
A real LT-1 had a four bolt main block.
Chevy 350. Small block vs long block?
"small block" typically distinguishes between a 2 bolt and 4 bolt main. (Small block= 2 bolt main. Big/large block=4 bolt main) "long block" typically distinguishes between a rebuilt engine that has heads, rockers, rocker covers, oil pump, pan... in other words, complete, versus just block, crank, cam and pistons (short block).
What number do you look for to know if a 350 small block is a 4 bolt main?
There isn't a way to identify a 4 bolt main block without looking inside the oil pan.
What year and make is 3814678 in a Chevy engine?
3814678 appears to be a bad number 3914678 is a 1968, 302, 327, or 350. 2 bolt main block
When did they start making a 350 engine with a 4 bolt main?
1969... When they changed to the large journal crankshaft and engine block.
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.
Is a 1978 Chevy 350 engine 4x4 2 bolt main or 4 bolt main?
If it came stock with a 4 barrel carb and has the large harmonic balancer, it's probably a 4 bolt main.Repost with the engine number stamped on the machined flat pad on the passenger front of block just below the front of the passenger side cylinder head.
Main bolt torque on 454 big block?
For what I read tonight, as I am doing my Big Block, the 4 bolt main is 110LBS
