ACCEL U Groove Shorty Spark Plug - 0276S (4 Pack) Exhaust Pipe Heat Shield Will clear up to 3

Will clear up to 3 3/4 in

1972-1992 Pontiac Firebird

Hybrid ProLite

Shorty Spark Plugs For Tubular Exhaust Headers

1-1/2 in OD Bushing

ACCEL U Groove Shorty Spark Plug - 0276S (4 Pack) Exhaust Pipe Heat Shield Will clear up to 3ACCEL U Groove performance spark plugs produce a larger spark for more power at high rpms. They improve throttle response and fuel economy and reduce fouling. Their purified Alumina insulator prevents arcing and their machine rolled threads protect heads. **Please Note** Although ACCEL still calls these U Groove Plugs they do not groove the electrode. Vehicle Applications: 1971 1974 Mercury Colony Park 1971 1985 Chevrolet C20 Suburban 1976 1978 GMC