6.9" Damper for ' 61-79' Pontiac 326, 350, 389, 400, 421, 428 and 455
Part #: 80020
List Price: $137.98
Our Price: $68.99
You Save: $68.99
6.9" Damper for ' 61-79' Pontiac 326, 350, 389, 400, 421, 428 and 455 engines.This damper is dimensionally the same as the 1969 through 1979 stock damper. To fit this damper on a 1961-'68 engine requires the use of '79 or later timing chain cover, water pump and related accessories.This damper has the stock accessory pulley bolt circle plus a BB Chevy accessory bolt circle.
PowerForce+Plus great new street dampers are made from extremely tough nodular iron and are suitable for all street applications and mild (non SFI) racing applications. These dampers are designed to be safely revved to as high as 6,000 rpm.
What is Bonding?When dampers are bonded, what does this mean? It means that the elastomer (rubber) that is sandwiched between the ring and the hub is bonded, or vulcanized, to metal. This is similar to the process used to bond the metal motor mounts to the rubber vibration isolaters used in these mounts. This greatly increases the safety of the damper as most stock, and many inexpensive aftermarket dampers, are just pressed together and under heavy duty applications, the ring can rotate, moving your TDC mark from the true position, or fly off the engine. And that is very bad!
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