Chevy BBC 454 8.000" External Balancer Fluid Damper Harmonic Balancer SFI 18.1

Brand:	Speedmaster
Part Number:	PCE291.1064
Part Type:	Harmonic Balancer
Engine Balance:	External
SFI Rating:	SFI 18.1
Degree Markings:	Yes
Degree Marking Range:	50 BTDC to 10 ATDC
Outside Diameter (in):	8.000 in.
Harmonic Balancer Material:	Steel
Harmonic Balancer Construction:	Fluid
Harmonic Balancer Finish:	Black zinc chromate
Mounting Hardware Included:	No
Quantity:	Sold individually.
Notes:	3/16" keyway slot, Weight 17.3 lbs.

Using only three parts--a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two--these SFI-approved Fluid dampers can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.