Chevrolet Performance 19331470 - Small-Port Vortec 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 19331471, available separately Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. These upgraded production cylinder heads are ideal for 400-450 horsepower street and racing (great for circle track applications) engines. Vortec Bowtie cylinder heads come with bigger valves, a thicker deck surface and 66cc combustion chambers. The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head.