Blower Special 351 Cleveland Ford 28oz Harmonic Damper

1/4"
3/16"
No Second Keyway

Fits Ford 351 Cleveland & Australian 302 Cleveland V8
Blower Special with 2.065" Seal Dimension for increased strength in Hub
The added side load created by driving most superchargers adds a great deal of stress to the harmonic damper and crank snout (pulling on the damper). A stock-dimension small block Ford harmonic damper can split in the keyways when driving a supercharger. Increasing the O.D. of the harmonic damper where it passes through the oil seal provides a great improvement in strength for the damper and crankshaft. Adding the 2.065" oil seal dimension to this damper is ideal to increase strength where it is needed most.
Requires Larger I.D. Oil Seal (Fits Stock Timing Cover; Options Below):
Timken 332134 (or National 332134); NAPA NOS 20520 (or SKF CR 20520)
OE-Style 4-Bolt Face (3.30" Bolt Circle, 2.37" Register)
28oz. External Balance
6.7" O.D.
3.5" Overall Length
10.4 lbs. Gross Weight
Billet Steel Construction
SFI 18.1 Certified
Dual Keyways Standard: Select either 1/4", 3/16", or No Second Keyway

Product 23/26

Custom Left Slide Out