Same casting as the natural-finish version, polished. Long tubes are the obvious choice for an LS swap right up until the steering box or the frame rail gets in the way; cast manifolds hug the head tightly enough to clear, and a 2.50 in. outlet flows far better than the truck manifolds most swaps start with.

Hooker 8503-1HKR BlackHeart LS Swap Exhaust Manifold Features:

• Fits GM Gen III and Gen IV Chevrolet LS engines.
• Multi-fit design covers a wide range of swap applications.
• 2.50 in. outlet.
• Compact routing for tight engine bays where long tube headers will not clear.
• Stainless steel construction.
• Polished finish.
• Sold as a pair.