Product#: 22072MP

March Performance Chevy Small Block Long Water Pump Ultra Serpentine Pulley and Bracket Kit; Clear Powder Coat; For Keyway PS Pump and 7176 AC Compresor

Simple yet exceptionally styled, this new March Performance "Mid Mount" alternator, power steering and A/C serpentine set from March Performance offers an exciting new look. CNC machined from solid billet 6061-T6 aluminum for...

Product#: HD100012

396-427 Pro/Race All Steel 7.01" x 1.73" Internal Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: HD100011

400ci Pro/Race All Steel 6.61" x 1.54" External Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: HD100014

283-350 with Supercharger Pro/Race All Steel 6.61" x 1.54" Internal Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: Z8151

1965-Up Chevrolet Big Block Short Water Pump With Alternator / AC Serpentine Idler Pulley Set

Idler pulleys are used when excessive free belt length causes belt-flapping or when more belt contact is desired on the pulley. Note: For use with Z8138 bracket set (sold separately).

Product#: HD100024

LS1 Harmonic Balancer 25% Under Drive Sport/Damper Only/11.07/6.14/2.53/3.88

The Pro/Sport under drive dampers are smaller in diameter than factory to slow the speed of belt-driven accessories. Since performance engines are generally used at higher RPM, the belt speed can be reduced to save horsepower...

Product#: HD100023

400 Harmonic Pro/Sport High Carbon Steel 6.61" x 1.52" External Balance Harmonic Balancer

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: HD100016

283-350 Pro/Sport High Carbon Steel 6.10" x 1.52" Internal Balance Harmonic Balancer

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: Z81501

Serpentine Belt Idler Pulley/Bracket With LH Alternator Mount

Idler pulleys are used when excessive free belt length causes belt-flapping or when more belt contact is desired on the pulley. Note: For use with Z8104 (sold separately).

Product#: Z8183

Serpentine Belt Idler Pulley/Bracket With LH Alternator Mount

Idler pulleys are used when excessive free belt length causes belt-flapping or when more belt contact is desired on the pulley. Note: For use with Z8181 (sold separately).

Product#: Z6005FP

Chevrolet Small Block With Long Water Pump Single Groove Polished V-Belt Crankshaft Pulley

CNC machined from forged billet aluminum with a smooth polished finish.

Product#: HD100015

396-427 with Supercharger Pro/Race All Steel 7.01" x 1.73" Internal Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: HD100013

454 Pro/Race All Steel 7.01" x 1.73" External Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: HD100020

396-427 Pro/Sport High Carbon Steel 7.01" x 1.73" Internal Balance Harmonic Balancer

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: HD100018

LS1/LS2/LS3/LS6 Harmonic Balancer Sport/Internal/12.7/7.52/2.47/2.86

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: HD100010

283-350 Pro/Race All Steel 6.61" x 1.54" Internal Balance Race Harmonic Balancer

Pro/Race harmonic dampers are designed for a wide range of high performance applications. This "all steel" damper is direct replacements for factory cast iron versions which may fracture or disintegrate at high RPM and are...

Product#: HD100022

283-350 Pro/Sport High Carbon Steel 6.61" x 1.52" Internal Balance Harmonic Balancer

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: HD100025

LS1/LS2/LS3/LS6 Harmonic Balancer 25% Under Drive Sport/Damper Only/11.76/6.75/2.83/3.03

The Pro/Sport under drive dampers are smaller in diameter than factory to slow the speed of belt-driven accessories. Since performance engines are generally used at higher RPM, the belt speed can be reduced to save horsepower...

Product#: HD100017

LS1 Harmonic Balancer Sport/Internal/12.4/7.52/2.31/3.70

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...

Product#: HD100019

283-350 Pro/Sport High Carbon Steel 6.61" x 1.52" Internal Balance Harmonic Balancer

Pro/Sport harmonic dampers protect against harmful engine vibrations that can lead to valvetrain damage, rapid bearing and timing chain wear or ultimately crankshaft breakage. Machined to exacting tolerances and assembled...