Hooker Exhaust Manifolds - 2-1/2 in Outlet - Small Block Chevy (Pair) Accessory Mounts 5:1 Gear Reduction

5:1 Gear Reduction

They are a one-piece

13/16-16 in Thread Size

Natural / Natural

Hooker Exhaust Manifolds - 2-1/2 in Outlet - Small Block Chevy (Pair) Accessory Mounts 5:1 Gear ReductionHooker's new cast iron small block Chevy exhaust manifolds offer an increase in performance and visual appearance over stock style manifolds. Their compact design fit into a wide variety of replacement and engine swap applications. This means you get the traditional look and easy fitment of a stock style exhaust manifold but now with a smoother, cleaner appearance, plus more modern features. These manifolds are cast out of high silicon molybdenum