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#: 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#: K5100

1965-72 Chevrolet 396 7-1/16" 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#: 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#: 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#: 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...