What aftermarket headers are available for the LT1?
The following shows the current aftermarket header manufacturers and details on their products: Manufacture Size Flange Tubing Stainless Coating Dual-cat avail. ——————————————————————————————————— Ariz S&M 1 3/4 3/8 14ga No HPC (ceramic) Yes Edelbrock 1 5/8 5/16 16ga Yes Black paint Yes Edelbrock 1 5/8 5/16 17ga No Pro-Tech Yes Hooker 1 3/4 No High temp black No Hooker 1 5/8 No JBA 1 5/8 3/8 14ga No Yes MAC 1 5/8 16ga No High temp coat No SLP 1 3/4 Yes Yes Note the MAC’s high temperature coating covers the exterior and 2″ of the interior. The Edelbrocks alternate between 1 1/2 and 1 5/8 on a cylinder by cylinder basis, alternating in the firing order. The JBAs are AR (Anti Reversion) style which start out 1 5/8, then into an AR tube, and come out at 1 3/4. The 1 3/4 Hookers are full-length headers with no O2 sensor bungs, no AIR tubes, with a collector exiting near mid-tail of tranny, and requires a custom y-pipe at
