Riser, GM/Ford V8

Riser. Material: Cast Iron. Use: With 4" I.D. exhaust hose. Ford Small Block V8 302-351 cu. in. GM Small Block V8 305-350 cu. in. GM Big Block V8 454 cu. in. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. Material: Cast Iron. Use: With 4" I.D. exhaust hose Ford Small Block V8 302-351 cu. in. GM Small Block V8 305-350 cu. in. GM Big Block V8 454 cu. in. Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty