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Flows 850 cfm
Leaks can lead to the death of your rear end
OEM replacement
or another that's set up the same
Chevy LS1 4.125" 393ci Forged Rotating Assembly Kit [3.905] Flows 850 cfmSpeedmaster Chevy LS1 rotating assembly featuring a precision ground forged 4340 steel crankshaft, 4340 chromoly H beam connecting rods, and forged flat top pistons matched to your bore size.
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