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Reviews

The only excellent worth buying early harmonic balancer now made... and USA Made.

SFI-Rated Injected-Elastomer Damper - Pontiac 326-421 1959-67, Internal Balance, 5.50″ OD, 3 piece design, balancer bolts and keyway. Two (2) timing marks at zero & 6 deg BTDC. *Will also fit other 1959-67 Pontiac engines but it depends on your crankshaft snout, Black Anodized with silver pulley.

 SFI-Rated STL Harmonic Dampers are designed to maximize the efficiency of your Pontiac Engine.

SFI Certified steel dampers are perfect for the weekend warrior or the all out racer. These dampers can be used for the street; for racers that drive their vehicles to and from the track. The inner hub and outer ring are manufactured from high quality billet steel forgings, with elastomer injected between the two component parts. The hub and the ring are manufactured with inner and outer ridgelines that secure the outer ring to the inner hub. These products are available in black epoxy or polished steel with an epozxy clear coat.

Benefits/Characteristics
• Meets SFI 18.1 specification
• Easy to read laser engraved timing marks
• Accurate crank bore for a proper pressed fit
• Manufactured from billet carbon steel forgings
• Injected with elastomer between the inner hub and outer ring


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