Performance Parts

The Speedmaster PCE271.1023 is a precision hardened steel valve spring shim designed for engine valve train assembly and adjustment. This shim measures 1.220" outer diameter, 0.511" inner diameter,...

The Speedmaster PCE272.1002 is a high-performance dual valve spring set engineered for LS1 engine applications. These OEM-quality springs deliver 130 lbs of load at 1.800" installed height, making...

The Speedmaster PCE272.1003 is a precision-engineered single valve spring with integral damper, designed for high-performance engine applications. This spring delivers 125 lbs of pressure at 1.800"...

The Speedmaster PCE272.1007 is a precision-engineered dual valve spring assembly designed for high-performance engine applications. With a 1.450" outer diameter and 130Lbs load rating at 1.800"...

The Speedmaster PCE272.1008 is a high-performance valve spring engineered specifically for Oldsmobile engines. This 1.460" outer diameter spring delivers 128 pounds of force at 1.800" compressed...

The Speedmaster PCE272.1011 is a precision dual valve spring engineered for high-performance engine applications. With an outer diameter of 1.550" and a spring rate of 275 lbs @ 2.100", this...

The Speedmaster PCE272.1013 is a precision single valve spring with integrated damper, designed for high-performance engine builds. Engineered with a 1.550" outer diameter and rated at 135Lbs @ 1...

The Speedmaster PCE272.1020 inner valve springs are precision-engineered components designed for engine valve train applications. These springs feature a 1.063" outer diameter with a 1.060" coil bind...

The Speedmaster PCE273.1004 are premium stainless steel intake valves engineered for Chevy small-block (SBC) 350 engines. Featuring a 2.020" standard valve head and 11/32" stem diameter, these valves...

The Speedmaster PCE273.1022 is a set of stainless steel intake valves engineered for Chevy BBC 454 big-block engines. These valves feature 2.190-inch heads with a +100 lift specification and...

The Speedmaster PCE273.1023 intake valves are precision-engineered stainless steel components designed specifically for Chevy BBC (Big Block Chevrolet) 454 engines. With a 2.250" standard bore and...

The Speedmaster PCE273.1027 intake valves are precision-engineered stainless steel valves designed specifically for Chevy BBC (big-block Chevrolet) 454 engines. These valves feature a 2.300" head...

The Speedmaster PCE273.1045 intake valves are precision-engineered stainless steel components designed specifically for Ford 351C Cleveland and 460 engine applications. With a 2.250" valve head...

The Speedmaster PCE273.1063 stainless steel intake valves are engineered for Oldsmobile 400, 425, and 455 big-block engines. These precision-manufactured valves feature a 2.072-inch head diameter and...

The Speedmaster PCE273.1074 is a set of stainless steel intake valves engineered for Pontiac 326, 400, and 455 cubic-inch engines. These precision-machined valves feature a 2.110" head diameter and...