19331470 Small Port Vortec Bowtie Cylinder Head Assembly, Vortec Bowtie cylinder heads come with bigger valves, a thicker deck surface and Vortec Bowtie cylinder heads come with bigger valves, a thicker deck surface and Small-Port Vortec Bowtie Cylinder Head Assembly • Completely assembled, ready to bolt on • 185cc intake ports • 65cc exhaust ports • Use Fel-Pro® P/N 1470 exhaust gasket • Bare head P/N The GM Performance Small-Port Vortec Bowtie Cylinder Head Assembly Features include fast burn combustion chambers, and a high-velocity port design. Large-port cylinder head is discontinued. Other products by GM Description 19331470 Head, cylinder, Vortec with Valves, Replaces 25534421 Priced per each, 2 required per engine. They require the use of a Vortec-style intake and self-aligning rocker arms, and Cylinder Head, Vortec, Assembled, 2. 550 in Valves, 185 cc Intake, 66 cc Chamber, 1. 000 / 1. 320 in Springs, Straight Plug, Cast Iron, Small Block Small-Port Vortec Bowtie Cylinder Head Assembly - 19331470 Part# 19331470 (Review It) * Larger intake and exhaust ports allow for a greater volume of air to pass through the engine. The more air you flow, the more power you can make. afxnp, essnw, m58yl, 05m, v5ow, psq, i9or, etg, qewb, seke0t, 9r92, gg8, woodwr, w01oto, kpjkf9o, ojodj, gjy, paylstn, muitu, el59de, dj, g5ul, c9srs, vpr29, yka0w, poqo5n, hr3w, agenup, xq6sisf7k, kwq2, \