Engine & Exhaust

Allstar 18mm O2 Sensor Bung Angled ALL34152 Hard-to-find O2 sensor fittings work in a variety of uses. Alternate Description

Allstar 18mm O2 Sensor Plug ALL34150 Hard-to-find O2 sensor fittings work in a variety of uses. Alternate Description

Allstar Check Valve Only for Crankcase Evac Kit ALL34146 Alternate Description CHECK VALVE ONLY FOR CRANKC

Allstar Crankcase Evacuation System ALL34145 Reduce crankcase pressure for optimum piston ring seal, fewer oil leaks and better engine performance. System includes two of each: chrome plated push-in...

Allstar 1:1 Water Pump Pulley ALL31085 Double groove aluminum pulley kits include belts, crank pulley and water pump pulley with a 5/8" diameter hole. Components also sold separately. Alte

Allstar 1:1 Pulley Kit for use w/o Power Steering ALL31083 Double groove aluminum pulley kits include belts, crank pulley and water pump pulley with a 5/8" diameter hole. Components also sold...

Allstar 1:1 Pulley Kit Head Mount PS ALL31082 Double groove aluminum pulley kits include belts, crank pulley and water pump pulley with a 5/8" diameter hole. Components also sold separately.

Allstar Pulley Shim Kit Crank ALL31066 Use shim kits to properly align pulleys. Water pump shims have dual bolt hole pattern to fit most GM and Ford water pumps. Crank pulley spacers are for small...

Allstar Pulley Shim Kit Water Pump ALL31064 Use shim kits to properly align pulleys. Water pump shims have dual bolt hole pattern to fit most GM and Ford water pumps. Crank pulley spacers are for...

Allstar Water Pump Pulley 6.625in Dia 3/4in Pilot ALL31050 Specifically for short or Corvette water pumps, pulleys work with power steering pump and pulley to provide a ratio within the GM specified...

Allstar Water Pump Pulley 6.625in Dia 5/8in Pilot ALL31040 Specifically for short or Corvette water pumps, pulleys work with power steering pump and pulley to provide a ratio within the GM specified...

Allstar Pulley Guide (Each) ALL31035 Hard-coated aluminum pulley guide helps retain drive belt. Guide is .085" thick with a 1.00" ID, 1/8" keyway slot, and a 2.500" OD. The same guide is found in...