PRW Industries Quiet Gear Drive - Dual Gear - Dual Idler - Small Block Chevy JB4SM Mechanical advance assembly can easily

Mechanical advance assembly can easily be locked out

Babbitt is designed to deform under extreme loads w/o damaging other engine parts

but offers the durability

38" Parts Included in Pair Pack system - (2) 100W 6" Daylighter Halogen lights - Deluxe Plug - N - Play Wiring Harness with 30 amp LED Switch - (2) Protective Light Covers PERFORMANCE HALOGEN AND PRECISION OPTICS 6" Daylighter Halogens deliver up to 1

Pontiac Firebird with/without console

PRW Industries Quiet Gear Drive - Dual Gear - Dual Idler - Small Block Chevy JB4SM Mechanical advance assembly can easilyReplace your stock timing chain with a CNC machined dual gear drive, available in noisy or quiet for most applications. Dual gear drives feature two sets of gears instead of a single chain or belt. This design provides increased durability and reliability, especially in high stress or high rpm applications. The dual gears distribute the load more evenly, reducing the risk of failure or stretching. Most applications require little or no machining.