American Racing: 1964-1977 Chevelle A-body Small Block Headers, 1-3/4, 1-5/8, or 1-7/8" Size:1-7/8" x 3" 8-degree maximum advance/retard

8-degree maximum advance/retard

The combination of the release of residual machining stresses and burnishing of threads and bolt spot faces ensures that big end bores stay round regardless of how many times your rods are disassembled and reassembled

Consider these plugs from Granatelli Motor Sports

which has been reported on the corvette forum

Filter Life  = 150K Miles

American Racing: 1964-1977 Chevelle A-body Small Block Headers, 1-3/4, 1-5/8, or 1-7/8" Size:1-7/8" x 3" 8-degree maximum advance/retardAmerican Racing Headers: 1964 1977 Chevelle A body Small Block Headers, 1 3 4" x 3", 1 5 8" x 3", or 1 7 8" x 3" Our line of classic muscle car systems continues with ARH headers for your small block powered 64 77 A body. Available in 1 5 8, 1 3 4 or 1 7 8 primaries with 3 collectors, expect a great fit and outstanding performance. These ARH headers can handle over 700hp easily. Product features on this system includes: 100% Made in the USA Never