These S/B Chevy chassis headers are for cars with engine set back 2-3/4" to 5". #1 spark plug must be behind the ball joint. Fully tuned pipes kept high for clearance. 3" collector. Fits Shaw, Bullitt, Howe, WRC, GRT, NASCAR Late Model - most IMCA modifieds. S/B Chevy. Fits angle plug heads. Includes gaskets and header bolts.
Races are won by the guy who gets off the corner best. Torque is what gets that car moving and the right header is one key ingredient. High velocity headers are designed to boost torque.
Specs Chart (GIF)
Standard Port, 1-5/8", 3" Collector