|
CALL for "UNADVERTISED DISCOUNTED SPECIALS" We applied the airflow technology developed in our championship-winning Pro Stock engine program to produce these state-of-the-art heads. Every intake port, every exhaust runner, every valve bowl, and every combustion chamber is 100% CNC machined on special dedicated PRO 1 castings.
Dart PRO 1 CNC heads are professional quality competition cylinder heads. We sleeve the head bolt columns between the intake ports to maximize the cross-sectional area at a critical point in the flow path.
The high-velocity raised exhaust ports use Pro Stock airflow concepts that dramatically improve cylinder scavenging and the engine’s ability to accelerate quickly.
Multi-angle intake valve seats direct the air-fuel mixture into the chamber like an airfoil, reducing turbulence and preventing fuel separation. Fully radiused exhaust seats provide the smoothest possible transition into the ports for hot exhaust gases. Improved cylinder scavenging allows more fuel and air to be burned on the next power stroke.
|
Cams / Lifters /Timing Sets
On all complete assembly packages, it is very possible that the valve springs are not correct for your camshaft. All valve springs should be checked for compatibility to your camshaft. Severe wear of valve train components and severe engine damage could result from failure to do this. Check spring requirements before heads are installed on the engine. If in doubt please contact your camshaft manufacturer or USA Performance Parts. We do carry optional springs for all of your needs.
