HARMONIC BALANCERS
Allstar Performance Crankshaft Hub
Designed specifically for circle track engines without a harmonic balancer. Significantly lighter than a harmonic balancer and dramatically reduces rotating weight for quicker acceleration off the turn. Engraved timing marks; 0, 30 to 42 degrees. Features (3) 3/8-16 accessory threads. Weighs 1 pound. Part No. Description Diameter ALL90030 Aluminum Crank Hub 4.375"
BHJ Dampers Harmonic Dampers
BHJ Dampers are available in three configurations: • “All-Steel” consists of a steel outer ring and hub. • “Combo” dampers are made up of an aluminum hub and steel outer ring. • “Economy” dampers are the economical alternative. Made from nodular iron. Not SFI-approved. Part No. Model Diameter Shell Hub Balance BHJCH-IB-221 † Economy 6.100" Iron Iron Internal BHJCH-IBS-6 All-Steel 5.700" Steel Steel Internal BHJCH-IBS-6-C Combo 5.700" Steel Alum. Internal † Not SFI-approved.
Chevrolet Performance Harmonic Dampers
Chevrolet Performance harmonic balancers are direct replacement units. OEM-original cast nodular iron, rubber inertia ring, steel center hub harmonic balancers. Not SFI-approved. Part No. Model Engine Diameter Balance GMP6272222 A Cast-Steel 350 8.000" Internal GMP19301706 B Nodular Iron 350-400 8.000" External A One timing mark with no degree markings. B GMP19301706 balancer direct replacement for 1970-74 LT-1, ZZ6/CT400 crate engine. 1-11/16" inertia ring, 0-60 engraved timing marks.
Fluidampr Harmonic Balancers Four models available: • Traditional Fluidampr is a steel balancer that meets SFI specifications. • The Signature Series, which also meets SFI specs, has an aluminum housing to reduce weight. • The Streetdampr is ideal when an SFI-spec unit is NOT required. • The CT Gold offers centering technology to allow the crank to be balanced with the Fluidampr. SFI-approved. Part No. Model Engine Diameter Balance FLU720101 Fluidampr 283-350 7-1/4" Internal FLU720111 Fluidampr 400 7-1/4" External FLU620101 Fluidampr 262-350 6-1/4" Internal FLU670100 Streetdampr 283-350 6-3/4" Internal
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2021-22 ENGINE BUILDER CATALOG
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