For Big Block Chevrolet engines 1991-pontiac-firebird-esi6483971 ASTM D4741 2

ASTM D4741 2

SAE Viscosity Grade 10W30

Increase rear suspension handling by replacing your weak factory stamped steel rear lower control arms and rubber bushings control arms with UMI's heavy duty tubular adjustable setup

at degrees C 30 at neg 10 degrees C

designed to work specifically with the high output inductive storage ignition module in the ready to run distributors

For Big Block Chevrolet engines 1991-pontiac-firebird-esi6483971 ASTM D4741 2These kits were specifically designed to provide a "plug & play" cam position signal to Holley EFI systems, although they may be used with any EFI system which can read a digital, square wave input cam signal. They are intended for use with Big Block Chevy engines with a +. 400" raised cam height and (Jesel or similar) external, dry timing belt, cam drive systems.