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Harmonic Balancers

Also see Reconditioned & Used Engine Parts listing for more harmonic balancers.

DescriptionPhotosItem NumberPriceQuantity 
Original Equipment Stock Replacement Harmonic Balancer
OE style replacement balancer. Fits all 68-77 350 (except W-31), 400 and 455's. This is a premium quality balancer made in Australia - not to be confused with the poor quality Chinese units on the market.

Click here for photo 14-370 109.95
High Performance Harmonic Balancer
For performance applications not requiring an SFI certified balancer, these high performance balancers are manufactured with a higher grade iron than OE balancers. They also feature a no slip outer ring that is degreed at 0 to 50 degrees and every 90 degrees. External balance per original. Drilled to accept stock pulleys for proper pulley/belt alignment. Fits 1968-1976 400 and 455.

Click here for photo 18-118 149.95
SFI Certified Harmonic Balancer
For racing applications requiring a SFI 18-1 certified harmonic balancer (NHRA 10.99 and quicker), we offer an all steel Elastomer-type balancer. Elastomer-type balancers feature superior high frequency damping qualities and the ability to dampen ALL types of vibrations: torsional, axial and radial. Other dampner designs are limited to damping torsional vibrations only. Degreed 0 to 50 degrees. 6.6" diameter. External balance as per original. Drilled to accept stock pulleys for correct belt/pulley alignment. Fits 1968-1976 400 and 455.

Click here for photo 18-120 549.99
High Perf Harmonic Balancer Bolt
Rated at 170,000 psi tensile strength, this high performance balancer bolt and washer are far stronger than the original. Fits all V8 66-77. Uses 12 pt. socket.

18-102 39.95
Harmonic Balancer Repair Sleeve
Repairs balancers with wear groove from front seal. Eliminates oil leaks from worn balancers. Fits all V8, 64-77.

12-046 9.49
Timing Tape
Applied to the harmonic balancer, our new tape allows you to accurately find the optimum ignition timing and advance curve settings for your particular application. Instructions and our baseline tuning info included - cheap horsepower at its finest! For use on all 1968-1977 standard (6 1/2") 350, 400 and 455 balancers.

Click here for photo 18-148 10.99
Oldsmobile Cutlass and Olds 442 330 350 400 455 Harmonic Balancer Vibration Damper