CRAWFORD 4 PORT CYLINDER HEAD
Donovan Engineering supplied us with the first design Crawford head. We then blended the intake ports into the bowl area & performed a mulitple angle high performance valve job.
The flow tests showed excellent flows to a point, then the intake port size became the limiting factor. The Crawford head in this configuration is an excellent choice for a high performance street engine. It will deliver excellent torque & power at low engine RPM"S.