Fits 1970-1974 GM LS 2nd Gen Tube Size 1-7/8, Long Tube Header-Painted 2298HKR tools-and-tool-partsHighMargin 74/8 V 1987 - 1994

74/8 V 1987 - 1994 Chevrolet Blazer 4/8 V 1990 - 1993 Chevrolet C1500 Cheyenne 4/8 V 1987 - 1991 GMC R3500 4/8 V 1988 - 1995 Chevrolet C1500 4/8 V 1994 - 1995 GMC K2500 Sierra SLT 3

and the other green for you tachometer to wire up

Provides Correct Pressure

98/8 V 1982 - 1986 GMC K2500 Suburban 3

Fits 1970-1974 GM LS 2nd Gen Tube Size 1-7/8, Long Tube Header-Painted 2298HKR tools-and-tool-partsHighMargin 74/8 V 1987 - 19941970 74 GM F body Full Length LS Engine Swap Headers for Hot LS1 LS6 LS2 (cam, heads, nitrous), 6. 2L (L92) Vortec truck, LS3 or all supercharged LS Vortec engine swaps Features: Premium fitment with optimized ground clearance. The only 1970 74? specific header design in the marketplace Laser cut 3 8? flanges with flat finished TIG welded port sealing 1 7 8? primaries 3" collectors Designed and intended for installation only with Hooker LS swap engine