a 1/8" to 3/8" grip range and are sold in 250-piece boxes
**Please Note** Although ACCEL still calls these U-Groove Plugs they do not groove the electrode
Designed in conjunction with noted Ford drag racer Billy Glidden for raised port aluminum C3 SVO (Yates) cylinder heads
Steel Zinc Plated Housing
Hooker Super Competition Glass Pack Muffler - Glass Pack - 4 in Side Tube - Slip-In - Pair 57BK a 1/8" to 3/8" gripHooker Headers Super Competition Sidetube Muffler 21021HKR Slip In Sold In Pairs 4 in. Glasspack Long Lasting Easily Removed For Racing Quieter Than Glasspack High Level Of Sound Control Will Not Restrict Engine Efficiency Applications include: Corvette, Chevrolet, 1982, 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, 1973, 1972, 1971, 1970, 1969, 1968, 1967, 1966, 1965 Vehicle Applications: 1963 1982 Chevrolet Corvette Hooker holds to its claim of