Product#: 1720121

396-427 Internal Balance Fluidampr Harmonic Damper 7-1/4" Outer Diameter

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

Product#: 1620111

396-427 Internal Balance Fluidampr Harmonic Damper 6-1/4" Outer Diameter

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

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#: 1620101

262-350 / 409 6-1/4" Internal Balance Fluidampr Harmonic Damper

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

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#: 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#: G2126

1970-74 350 Hi-Performer Balancer (8")

Harmonic balancers are an effective way of extending the life of your engine by dampening harmful crankshaft vibrations. The torque inputs from the piston and rod assemblies bend and twist the crankshaft slightly with every...

Product#: G2125

350 Harmonic Balancer 8"

Replace your worn, damaged or missing harmonic balancer and enjoy peace of mind knowing that the vibration from your engine is being controlled with parts manufactured to original factory specs. This harmonic balancer is...

Product#: 66510

350ci Small Block Without High Performance 6-3/4" Proform Harmonic Balancer

This damper is an excellent replacement unit for the mild street engine that does not require an exact reproduction or high performance race damper. A perfect choice for the daily driver and easy on the budget. This harmonic...

Product#: 141725-BCHW

Chevy Bowtie Emblem 6-3/4" Chrome Harmonic Balancer Cover. Chevy S/B.

These patented harmonic balancer covers offer improved readability, more stable Top Dead Center indication and timing accuracy, enhanced appearance for a previously ignored underhood area, and the elimination of timing tapes...

Product#: 141729-BCHW

Chevy Bowtie Emblem 8" Chrome Harmonic Balancer Cover. Chevy B/B.

These patented harmonic balancer covers offer improved readability, more stable Top Dead Center indication and timing accuracy, enhanced appearance for a previously ignored underhood area, and the elimination of timing tapes...

Product#: 154211

1965-1974 Harmonic Balancer Attaching Bolt Set, BB Chevrolet

Correct reproduction harmonic balancer bolt kit, 1/2-20 x 1-1/2", includes 1 bolt & 2 washers. All with big block. GM Full Size passenger car applications: 1965-1974 Camaro applications: 1967-1974 Chevy II/Nova applications:...

Product#: 1800111

454-502 8" External Balance Fluidampr Harmonic Damper

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

Product#: 1720101

262-350 7-1/4" Internal Balance Fluidampr Harmonic Damper

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

Product#: 1720111

400 7-1/4" External Balance Fluidampr Harmonic Damper

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

Product#: 1800101

396-427 Internal Balance Fluidampr Harmonic Damper 8" Outer Diameter

Fluidampr performance harmonic balancers and dampers contain no rubber or elastomers. Instead, they are filled with a viscous silicone-based liquid that doesn't wear out after time. The liquid absorbs virtually all torsional...

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#: K5007

1962-67 327 8" Harmonic Balancer

Harmonic balancers wear out over time causing unwanted noise and vibration. They should be replaced before damage is done to your engine. This is an exact, authentic reproduction of the original GM harmonic balancer with all...

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...

Product#: HD100021

454 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#: K5011

1955-68 Chevrolet With 283, 307, 327 And 348 Harmonic Balancer (6-1/8")

Harmonic balancers wear out over time causing unwanted noise and vibration. They should be replaced before damage is done to your engine. This is an exact, authentic reproduction of the original GM harmonic balancer with all...

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#: HD100004

454 Pro/Street Bonded Nodular Iron 8.00" x 1.93" External Balance 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#: HD100003

396-427 Pro/Street Bonded Nodular Iron 8.00" x 1.93" Internal Balance 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#: 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#: 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#: 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#: G2124

Small Block Harmonic Balancer (6-3/4")

Replace your worn, damaged or missing harmonic balancer and enjoy peace of mind knowing that the vibration from your engine is being controlled with parts manufactured to original factory specs. This harmonic balancer is...

Product#: 66512

454 Big Block 8" Proform Harmonic Balancer

This damper is an excellent replacement unit for the mild street engine that does not require an exact reproduction or high performance race damper. A perfect choice for the daily driver and easy on the budget. This harmonic...

Product#: 66511

350ci without High Performance 8" Proform Harmonic Balancer

This damper is an excellent replacement unit for the mild street engine that does not require an exact reproduction or high performance race damper. A perfect choice for the daily driver and easy on the budget. This harmonic...

Product#: 66513

400ci Small Block 8" Proform Harmonic Balancer

This damper is an excellent replacement unit for the mild street engine that does not require an exact reproduction or high performance race damper. A perfect choice for the daily driver and easy on the budget. This harmonic...

Product#: 141727-BCHW

Chevy Bowtie Emblem 6-3/4" Black Harmonic Balancer Cover. Chevy S/B.

These patented harmonic balancer covers offer improved readability, more stable Top Dead Center indication and timing accuracy, enhanced appearance for a previously ignored underhood area, and the elimination of timing tapes...

Product#: 141726-BCHW

Chevy Bowtie Emblem 8" Chrome Harmonic Balancer Cover. Chevy S/B.

These patented harmonic balancer covers offer improved readability, more stable Top Dead Center indication and timing accuracy, enhanced appearance for a previously ignored underhood area, and the elimination of timing tapes...

Product#: 154220

1962-1996 Harmonic Balancer Attaching Bolt Set, SB Chevrolet

Correct reproduction harmonic balancer attaching bolt kit, ?Delta? headmark, 7/16-20 x 2-1/4", includes 1 bolt, and 2 washers. All small blocks w/Sp.Hi-Perf., or crank with threaded end. GM Full Size passenger car...

Product#: HD10032

Big 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#: HD10033

Big 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#: HD10031

Big 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#: 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#: 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#: 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#: A980021C

Chevy Small Block Alt, AC & P/S with Aluminum Reservoir Gloss Black PowderCoat V Drive Pulley System

This new V Drive Systems offer the same compact design and simple installation as a Serpentine Drive systems at a more affordable price. One part number gives you everything you need to accessorize your engine with American...

Product#: K5102

1966-70 375Hp 396 Or 427 Harmonic Balancer (8")

Harmonic balancers wear out over time causing unwanted noise and vibration. They should be replaced before damage is done to your engine. This is an exact, authentic reproduction of the original GM harmonic balancer with all...

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#: 66518BKC

Black 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#: G9287

1967-86 Chevrolet Small Block Crankshaft Balancer Washer

This washer is designed for use with the crankshaft balancer bolt.

Product#: G5886

1967-81 Small Block Chevrolet Crank Pulley Bolt

This bolt positively retains the balancer and pulley on the crankshaft snout. 7/16 x 20 x 2 1/4" grade 8 bolt Black oxide finish

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#: 174020SCA

Chevrolet Small Block with Power Steering Bright Finish Vintage Air Front Runner Drive Set w/o Pump

This Vintage Air Front Runner Drive system for Chevrolet Small Block engines allows the use of serpentine belt systems found on modern vehicles. The compact package is designed for continuous SAE-spec static and dynamic belt...