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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Chrome finish for long-lasting good looks
Kits include: Fully assembled aluminum cylinder heads
OEM replacement
The Speedmaster extra-wide rigid bands feature band linings with carbon fiber friction material for higher coefficient of friction for higher torque capacity and the ability to produce quicker
Chevy LS1 4.125" 393ci Forged Rotating Assembly Kit [3.905] Chrome finish for long-lasting goodSpeedmaster 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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