Chevy LS2 4.125" 416ci Forged Rotating Assembly Kit [4.000] Speedmaster water pumps have a

Speedmaster water pumps have a bigger impeller and larger cavity size to flow 40 percent more coolant than stock

making them ideal for withstanding the rigors of any demanding environment

They are manufactured from quality materials

They are manufactured from machined steel and offer excellent valve spring location

Complete engine sealing with Speedmaster exhaust gaskets

Chevy LS2 4.125" 416ci Forged Rotating Assembly Kit [4.000] Speedmaster water pumps have aSpeedmaster Chevy LS2 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.