Racing Power Headers - 1-5/8" Primary - 2-1/2" Collector - Steel - Ceramic - SB Chevy HSXSC11M61 When used independently they will

When used independently they will add approximately half of the preceding numbers

Not intended or recommended for street or circle track use

1965-1974 Cadillac Fleetwood

1957-1957 Ford Custom 300

The #3 line size offers a stiffer pedal feel while utilizing the more popular -4AN ends

Racing Power Headers - 1-5/8" Primary - 2-1/2" Collector - Steel - Ceramic - SB Chevy HSXSC11M61 When used independently they willProduct Description: Headers 1. 625 in Primary 2. 5 in Collector Steel Ceramic Small Block Chevy Pair Started in 1995 and specializing in both aftermarket and OEM markets, the Racing Power Company offers more than 4,800 different parts, including valve covers, dress up kits, air cleaner assemblies, crankshaft pulleys, breathers, light assemblies, and more.