PowerFlow Small Block Manifold Polished

These manifolds were designed for big horsepower 350 cid to 427 cid engines that are making 350 HP Plus. Manifolds have a 1 1/2" I.D. runner with a tall D port entry. The outlet is 3" with a stainless steel air straightened plate to direct exhaust into riser pipe for maximum scavenging. Manifolds will work with angled spark plugged heads, or straight spark plugged heads. Also, you can use tall valve covers for various rocker arm assemblies and stud girdle. Manifolds are available in black powder coated, hard anodized or polished in standard or recirc manifolds.