Edelbrock Single Perf SBC 64cc Head Comp

The Edelbrock 60909 Performer cylinder head is designed for 302, 327, 350 and 400 cid small - block Chevy engines up to 1986. This cylinder head includes your choice of 64cc (In order to retain stock compression ratio on 1970 and earlier small - blocks) or 70cc combustion chambers and high flow intake and exhaust ports. A Complete head includes larger - than - stock 1.46 valve springs to handle most high - lift cams. This head retains the stock intake port location for compatibility with standard manifolds and headers. Heat crossover is machined for 50 - state emissions legal performance.