Performance Parts

Hydraulic Roller Lifter Set

Performance Hydraulic Roller Lifters: VThunder by COMP Cams, the leader in valve train technology, introduces their new replacement Evolution?

Idler Pulley-Grooved SC LT4 GM Engine

• Genuine Holley Quality Parts

Idler Pulley-Smooth SC LT4 GM Engine

• Genuine Holley Quality Parts

Idler Pulley-Smooth SC LT4 GM Engine 90mm

• Genuine Holley Quality Parts

Idler Pulley-Smooth SC LT5 GM Engine

• Genuine Holley Quality Parts

Idle Speed Screw Spring

ID Spring Locator - 1.253" OD, .780" ID, .120" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.300" OD, .570" ID, .060" Thickness

ID Spring Locator Single - 1.300" OD, .570" ID, .060" Thickness, .650" Spring ID

ID Spring Locator - 1.300" OD, .570" ID, .060" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.350" OD, .515" ID, .130" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator - 1.420" OD, .530" ID, .060" Thickness

ID Spring Locator - 1.540" OD, .520" ID, .060" Thickness

ID Spring Locator - 1.540" OD, .640" ID, .060" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.540" OD, .640" ID, .060" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.565" OD, .535" ID, .100" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.600" OD, .570" ID, .060" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locator - 1.655" OD, .570" ID, .060" Thickness

The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines.

ID Spring Locators 100 - 1.655" OD, .570" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.300" OD, .570" ID, .060" Thickness

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.500" OD, .585" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.540" OD, .640" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.540" OD, .640" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.550" OD, .570" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.550" OD, .570" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.

ID Spring Locator Set of 100 - 1.625" OD, .570" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today.