Serious engine builders, this Edelbrock Performer RPM cylinder head is exactly what you need for boosting your small block Chevy's performance! The 60985 model features 64cc combustion chambers, 200cc intake runners, and 80cc exhaust runners with 2.02 inch intake valves and 1.60 inch exhaust valves. These heads are designed to replace stock heads on 302, 327, 350, and 400 cubic inch small block Chevy engines that use Vortec-style manifolds.
The raised runner intake port design increases airflow significantly, while the unique combustion chamber positions the spark plug closer to the cylinder center for more efficient combustion and power. They include adjustable rocker studs and guide plates, and they're dual-drilled to work with both center bolt and perimeter flange valve covers. You can expect about 20% more exhaust flow compared to cast iron Vortec heads, with performance optimized up to 6000 RPM. Installation does require some work - you'll need longer pushrods and proper valve setup, but the performance gains are absolutely worth it. If you're building an engine that needs serious power without going full race spec, these Edelbrock heads deliver that perfect balance of street performance and reliability!
Free 30-day returns 
Free 30-day returns
