Current Triumph TR6 HVDA Toyota 5-Speed Conversion

The transmission part of the process is just about finished.  The owner wanted us to check out the wear status of the cylinder head, and the cam and lifters were pretty worn.  The owner decided to install a GP2 cam, mill the head for a mild compression increase, and do a complete valve job (new valves, new exhaust seats, new valve guides, port the head). So, the head is out for machining.  See what I mean below…

Toyota 5-speed installed in the Triumph TR6

Toyota 5-speed installed in the Triumph TR6

Cylinder head out for machining.

Cylinder head out for machining.

Worn camshaft.

Worn camshaft.