These Gold series Blower balancers feature 4340 grade Steel Inner Hub / Alloy Outer Ring, for Street, Strip or Marine applications with dual keyways. STD 3/16" and 1/4" 180 degrees opposite. Weight saving applicable to our Steel/Alloy units. Front inner hub face is Standard Factory layout with a 2" inch register for standard blower pulleys. RPM range 10,000.
Specs: Application: Holden 253-304-308 V8.
Engine Balance: Internal Bore Min Diameter: 1.2395" Bore Max Diameter: 1.2400" Seal Diameter: 1.7700" Blown Seal Diameter: 1.9370" Series: Blown (Gold Series) Harmonic Balancer Material: Steel/Alloy Weight: 2.50kg Quantity: Sold individually Note: Dual keyway, 6 Bolt.
