Hedman Street Rod HTC Tight Tubes Hedders - 55-57 Bel Air/One-Fifty/Two-Ten LY271 These gaskets are used between

These gaskets are used between the upper and lower manifolds to create an air tight seal and prevent erratic idle if a vacuum leak is present

Thread size: -6AN male x -6AN female

1977-1992 Pontiac Firebird

adding strength to the entire front unibody and suspension

EMISSIONS DISCLAIMERThis product does not require a CARB EO#

Hedman Street Rod HTC Tight Tubes Hedders - 55-57 Bel Air/One-Fifty/Two-Ten LY271 These gaskets are used betweenHedman Hedders HTC Coated Headers; 1 5 8" Tube Diameter; 2 1 2" Collector; Shorty Design Tight Tubes have the flattest collector on the market! Exclusively from Hedman, these Hedders feature a unique 4 into 1 flat collector that produces the same power as a standard collector, while providing maximum clearance. Perfect for Street Rods and custom projects. Built in the USA, and backed by Hedman's Limited Lifetime Warranty! Hedman Hedders Street Rod HTC