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How do you tell if a 351 windsor block is a one piece or two piece rear main seal?
Wiki User
∙ 12y ago
all crankshaft/block seals are 2 peice
one peice is installed in block above cranksahaft
then crankshaft installed
2nd peice is installed in oil pan
oil pan then bolted to block to complete the seal
same for front seal
i really don't know how one would put a one peice seal on a crank
look at a crank and let me know if you could figure that one out
Wiki User
∙ 12y ago
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Does Chevy small block engine 350 57lg sgi does it have one piece or two piece rear main seal?
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What year did they start manufacturing the 350 small block with a one piece rear main seal?
1986
How has the Chevy 350 block changed in any way other than bore?
The Chevy small block went from a 2 piece rear main seal to a 1 piece rear main seal in 1987.
What is the difference between 1975 350 block to a 1990 350 block?
The 1990 block would have the integrated one-piece rear main seal. Oil pan and crankshaft are not interchangeable.
Can you drop the oil pan to change rear main seal 1984 Chevy half ton?
You MUST remove the oil pan to change the rear main seal. It's the only way because it is a 2 piece seal that fits in the rear main cap and block.
Does it have a two piece rear main seal?
If it is newer then a 1986, yes it doe's have a 1 piece rear main seal.
Will a crankshaft from a 1987 305 Chevy block work in a 1974 350 Chevy block?
no ,the 1986 and up blocks have a one piece rear main seal and will not fit in the earlier blocks.gmjim
Chevy 350 rear main seal?
Yep, they have one. 1986 and older has a two piece rear main seal. 1987 and up has a one piece rear main seal.
How do you replace a 1 piece rear main seal in a 91 4.0 jeep?
A Jeep 4.0L has a two piece rear main seal. You have to remove the oil pan and rear main bearing cap to replace it.
Will An 1985 305 rear main seal will not work to replace your 1987 305 that is in your boat?
No it will not, the pre-1986 Small block chevys used a two piece rear main and the 87's-up used a one piece. There were a couple oddballs but not many, marine engine might be one of them but I doubt it would work.
Does a 93 f150 have a 1 piece rear main seal?
does a 93 f150 have a 1piece rear main seal
Will the crankshaft and heads from a 1973 Chevy fit a 1990 block?
Chevy in 1977 changed the rear main oil seal to a one piece seal. the older crankshaft wont work.
