Swift Rear Coil Spring - Bulletproof - 5.0" OD x 16" Tall - 175 lb. Helmet Peak They feature a 3/8" NPT

They feature a 3/8" NPT inlet fitting and a 1/8" pipe fitting with plug for a fuel pressure gauge

Peterson's filter block off plates facilitate the hook up of wet and dry sump oil pressure lines to the engines stock oil filter pad

Individual injector available under 30657-1

9/16 in 26 Spline to 3/4 in Double D

2200 / 6800 RPM

Swift Rear Coil Spring - Bulletproof - 5.0" OD x 16" Tall - 175 lb. Helmet Peak They feature a 3/8" NPTPURPOSE BUILT FOR THOSE OF YOU PUTTING MORE STRESS ON A SPRING THAN HOW IS CONVENTIONALLY USED. WE SOUGHT AFTER A NEW APPROACH IN DEVELOPMENT FROM OUR REGULAR SUSPENSION SPRING. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs