Hooker BlackHeart Rear Dump Cast Iron Exhaust Manifold - Natural - GM LS-Series (Pair) EAG334740016100 ACEA Standards: ACEA A3/B4

ACEA Standards: ACEA A3/B4

Multiple Adjustment Holes

Made from Aircraft 4130 Chromoly Tubing and Jig Fixture Welded for the truest and strongest Jacobs Ladders on the market today

1987-1996 GMC G3500

BMR Suspension designed the UTCA057 to work well in street performance

Hooker BlackHeart Rear Dump Cast Iron Exhaust Manifold - Natural - GM LS-Series (Pair) EAG334740016100 ACEA Standards: ACEA A3/B4For 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