Engine & Exhaust

Allstar Dual Wire Harness ALL34233 Eliminate the need to manually uncap the exhaust. Bolt-on aluminum exhaust cut out is 3" in diameter and bolts to most adapter flange. Sold each. IMPORTANT! ALL34232 or ALL34233 harness (sold separately) is required for...

Allstar Single Wire Harness ALL34232 Eliminate the need to manually uncap the exhaust. Bolt-on aluminum exhaust cut out is 3" in diameter and bolts to most adapter flange. Sold each. IMPORTANT! ALL34232 or ALL34233 harness (sold separately) is required...

Allstar Electric Exhaust Cut Out ALL34230 Eliminate the need to manually uncap the exhaust. 12V Electric cut out bolts to a standard 3-bolt collector flange and uses a powerful geared motor to open and close a butterfly valve to direct exhaust. Sold each...

Allstar Exhaust Hanger ALL34220 Hanger swivels horizontally and vertically to simplify mounting in any position. Bolt or weld to chassis to support additional weight of mufflers, turndowns, etc. Steel strapping is 1/8" thick. Alternate Description...

Allstar Exhaust Block Off Plates SBC Std 1pc Aluminum ALL34212 Aluminum block off plates seal standard and spread port SB Chevy exhaust ports during engine storage or repairs. Plates protect against moisture, dust and dirt. Alternate Description ...

Allstar Exhaust Shield Oval Dual Straight Exit ALL34183 Aluminum shields protect body panels from exhaust exiting thru the passenger door and provide a clean, finished look from the outside simplifying exhaust routing. Round shield I.D. is 6", commonly...

Allstar Exhaust Shield Oval Dual Angle Exit ALL34182 Aluminum shields protect body panels from exhaust exiting thru the passenger door and provide a clean, finished look from the outside simplifying exhaust routing. Round shield I.D. is 6", commonly used...

Allstar Exhaust Shield Round Single Straight Exit ALL34181 Aluminum shields protect body panels from exhaust exiting thru the passenger door and provide a clean, finished look from the outside simplifying exhaust routing. Round shield I.D. is 6",...

Allstar 18mm O2 Sensor Bung Angled ALL34152 Hard-to-find O2 sensor fittings work in a variety of uses. Alternate Description 18MM O2 SENSOR BUNG ANGLED Part Number ALL34152 Vendor Part Number ALL34152 UPC Code 848238019247 ...

Allstar 18mm O2 Sensor Plug ALL34150 Hard-to-find O2 sensor fittings work in a variety of uses. Alternate Description 18MM O2 SENSOR PLUG Part Number ALL34150 Vendor Part Number ALL34150 UPC Code 848238019230 Package Weight...

Allstar Check Valve Only for Crankcase Evac Kit ALL34146 Alternate Description CHECK VALVE ONLY FOR CRANKCASE EVAC KIT Part Number ALL34146 Vendor Part Number ALL34146 UPC Code 848238072693 Package Weight 0.45 lbs 0...

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 breathers, check valves, weld-in 3.5" long threaded...