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GM LS SFI Certified High Performance Harmonic Balancer For Sale - New and Used


GM LS SFI Certified High Performance Harmonic Balancer
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GM LS SFI Certified High Performance Harmonic Balancer:
$187.99

Fits most LS engines and meets SFI Specification 18.1, Free up horsepower over stock dampers, 30% more efficient abouve 5,000 rpm, CNC-machined and designed to mount to crank hub so timing marks never change position, Features inertial ring and hub, rebuild-able and tunable by replacing elastomer strips, Exposed inertial weight at TDC provide indicator that elastomer strips need replaced when marks start to move GM LS SFI Certified High Performance Harmonic Balancer Sku # 91021811 Mfr. Part # 91021811 Condition New Brand Speedway Motors Sold Each Details Info

Speedway Motor's LS Harmonic Balancer is 30% more efficient above 5,000 rpm and frees up horse power over stock dampers. The shell is CNC-machined and is designed to mount to the crank hub so the timing marks never change position. It features an inertia ring and hub and is rebuild-able and tunable by replacing the elastomer strips. As an added feature, with the exposed inertia weight marked at TDC, you can tell that the elastomer strips need replacing when the marks start to move. All-around, this harmonic balancer has been built to handle your high performance LS engine with ease.

  • Fits most LS engines and meets SFI Specification 18.1
  • Free up horsepower over stock dampers, 30% more efficient above 5,000 rpm
  • CNC-machined and designed to mount to crank hub so timing marks never change position
  • Features inertial ring and hub, rebuild-able and tunable by replacing elastomer strips
  • Exposed inertial weight at TDC provide indicator that elastomer strips need replaced when marks start to move
Charts

(PDF)

Specs Material Type Steel Sold in Quantity Each Finish Painted Color Black Engine Balance Internal SFI Rated Yes Outside Diameter 6.325 Degree Markings Yes SFI Rating 18.1 Harmonic Balancer Construction Elastomer MFG. Part # 81102BK Reviews I'll buy it again Rated by LS man on September 25, 2021

Summary: Looks great and works great

Related Items / Suggested Parts Holley 97-160 Replacement Crankshaft Pulley, LS7 with Mid-Mount Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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