Hooker BlackHeart Rear Dump Cast Iron Exhaust Manifold - Natural - GM LS-Series (Pair) ARP627-3000 291 lb/in Spring Rate

291 lb/in Spring Rate

This can also be used as a sequential shift light

510″ (4 x 140mm)

COMP Cams Stud Girdle Adjusting Nuts are precision ground for minimum runout

Hooker BlackHeart Rear Dump Cast Iron Exhaust Manifold - Natural - GM LS-Series (Pair) ARP627-3000 291 lb/in Spring RateFor applications or projects where our standard LS swap manifolds (8501HKR, 8502HKR, 8503HKR series) don't quite fit and our "center dump" manifold (8504HKR) exits too far forward, our new "rear dump" cast iron swap manifolds have arrived. These differ in that they exit in a straight down fashion much like a block hugger header but exit more toward the rear of the engine than our "center dump" manifolds. Cast out of the same Hi Silicon Moly Ductile