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Vehicle Info NeededSPEEDMASTERPART NUMBER: 746-PCE291.1076
Race-Series Harmonic Damper Big Block Chevy 454
$16070
4 left in stock
Ships on Sep 08, 2026
Lowest Price GuaranteeBig Block Chevy
Race-Series Harmonic DamperBig Block Chevy 454 SFI 18.1 Outside Diameter: 7 in. Marking Range: 60° BTDC to 0° TDC External Balance Black Painted with White Markings Sold Individually
Speedmaster 746-PCE291.1076 Features:
Speedmaster Harmonic dampers are manufactured from forged K1045 low carbon steel and tuned elastomer between the two layers of steel. These dampers feature a bonding process which adheres the elastomer to the i.d. of the inertia ring and the o.d. of the hub, utilizing a strong adhesive along with an improved elastomer to create a much stronger bond. They also feature clear, white, easy-to-read timing marks against a painted black background. The steel inertia ring rotates harmonically with the engine and absorbs the torsion vibration from the rotating assembly at any frequency and RPM. It extends the life of crankshaft an d bearing which allows the engine to produce more power and torque. This damper is externally balancedthe term external balanced damper refers the built in weight or offset in the casting. When identifying your existing damper, (balancer) you must look on the backside. This is not visible if the damper is mounted on the engine.- Manufactured from forged K1045 low carbon steel and tuned elastomer between the two layers of steel
- SFI Approved
Part TypeHarmonic Balancer
BrandSPEEDMASTER
Package Height3.15
Package Width8.66
Package Length8.66
Weight14.55 PG
Part CategoryPerformance Parts
Degree MarkingsYes
Harmonic Balancer ConstructionElastomer
Degree Marking Range60 BTDC to 0 TDC
QuantitySold individually
Mounting Hardware IncludedNo
Harmonic Balancer MaterialSteel
Part FitmentSemi Universal
Outside Diameter7 in.
Safety RatingSFI 18.1
Engine BalanceExternal
Harmonic Balancer FinishBlack painted
Vendor Part NumberPCE291.1076
Package Qty1
Package TypeEA
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