Part Nos: HT-XXX (various, per application)

The Head-Tru is designed for cylinder head porting shops which have experienced the problem of intake port misalignment from one head to another.

Most head porters lay out their ports from a gasket or gauge that lines up from the intake manifold bolt holes. This can create problems due to misalignment on the cylinder head between dowel holes and intake bolt holes. The result is that an intake manifold can be port matched to only one set of cylinder heads.

The Head-Tru is a layout plate that registers from the block dowel holes. Using the blades supplied, the correct intake port running centerline can be scribed onto the head. This gives the correct starting point to layout from on every head. Additionally, it allows you to scribe the cylinder bores on the deck surface of the head for consistent combustion chamber layout.