Exhaust Valve

Help restore proper engine breathing and valvetrain performance with this replacement valve. Whether you're replacing a worn or damaged valve or completing a full engine rebuild, this essential component helps control the flow of air, fuel, and exhaust through the combustion chamber to keep your classic running properly. This valve fits 1957–1958 Pontiac Chieftain, Catalina, Bonneville, Star Chief and Super Chief.

• Includes: 1 Valve
• Engine: 347 cid (5.7L) V8; 370 cid (6.1L) V8
• Valve Type: Exhaust
• Valve Specifications: Steel valve with two lock grooves.
• Fitment Notes: Exhaust application. Engines use 8 per vehicle. The 1957 models use the 347 cid (5.7L) V8 and the 1958 models use the 370 cid (6.1L) V8.