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#: 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#: G9363

2003-06 C/K Truck Crankshaft Balancer

Replace the damaged or missing original crankshaft balancer on your engine with a Genuine GM service part. For vehicles with LSx swaps, you'll need to know what balancer you have to be able to order the right belt system. The...

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...

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#: HD100002

283-350 Pro/Street Bonded Nodular Iron 6.75" x 1.32" Internal Balance Street Harmonic Balancer

This Pro/Street bonded nodular iron damper has special splines to enhance bonding between the elastomer, inner hub and outer ring preventing any radial movement. PRO/STREET Harmonic Dampers feature: Nodular Iron Construction...

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#: 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#: 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#: HD100001

283-350 Pro Street Bonded Nodular Iron 6.10" x.760 Internal Balance Street Harmonic Balancer

This Pro/Street bonded nodular iron damper features special splines to enhance bonding between the elastomer, inner hub and outer ring preventing any radial movement. PRO/STREET Harmonic Dampers feature: Nodular Iron Constru...

Product#: HD100005

283-350 Pro/Street Bonded Nodular Iron 8.00" x 1.47" Internal Balance Street Harmonic Balancer

This Pro/Street bonded nodular iron damper has special splines to enhance bonding between the elastomer, inner hub, and outer ring preventing any radial movement. PRO/STREET Harmonic Dampers feature: Nodular Iron Constructio...

Product#: HD100006

400ci Pro/Street Bonded Nodular Iron 8.00" x 1.47" External Balance Street Harmonic Balancer

This Pro/Street bonded nodular iron damper has special splines to enhance bonding between the elastomer, inner hub, and outer ring preventing any radial movement. PRO/STREET Harmonic Dampers feature: Nodular Iron Constructio...

Product#: HD10028

Small Block Pro/Street Counterweight

Pro Race Performance externally balanced harmonic balancers feature weights bolted in place which may be removed for neutral or internally balanced application. Internally balanced balancers can be used on an external...

Product#: HD10029

Small Block Pro/Race Counterweight

Pro Race Performance externally balanced harmonic balancers feature weights bolted in place which may be removed for neutral or internally balanced application. Internally balanced balancers can be used on an external...

Product#: HD10030

Small Block Pro/Sport Counterweight

Pro Race Performance externally balanced harmonic balancers feature weights bolted in place which may be removed for neutral or internally balanced application. Internally balanced balancers can be used on an external...

Product#: 66518CC

Chrome Small Block 8" Proform Harmonic Balancer Cover

Add a high performance look to your harmonic balancer by adding this aftermarket cover.

Product#: 66517BKC

Black Proform 6-3/4" Harmonic Balancer Cover

Add a high performance look to your harmonic balancer by adding this aftermarket cover.

Product#: 66517CC

Chrome Proform 6-3/4" Harmonic Balancer Cover

Add a high performance look to your harmonic balancer by adding this aftermarket cover.

Product#: G3888

1998-02 F-Body LS1 Crankshaft Balancer with Pulley

Replace the damaged or missing original crankshaft balancer on your engine with a Delco service part. For vehicles with LSx swaps, you'll need to know what balancer you have to be able to order the right belt system. The...

Product#: HD100026

Pontiac 350-455 Harmonic Balancer All Steel Race/Internal/9.83/6.61/1.38/3.00

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

Product#: HD100027

Oldsmobile 350/403/455 Harmonic Balancer All Steel Race/External/11.14/6.61/1.54/3.00

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