Available for after market use. We have not incorporated them into our factory built 45 Mag, 5000 and 6000 models yet due to their limited supply. We hope to have them as an option for our Performance V Twin motors in early December.
 

They are decked using our recipe for best performance while using pump gas.
 

The ports are maximized for flow. We enlarge and match them to our stainless muffler headers and shape them for the intake manifold.


 

We increase the seat on the valves for maximum compression retention and good heat transfer from valve to head. We use interlock valve seats with a swirled polish finish - ground and sunk, competition style.
 

We do not remove the valve guide in the port which can lead to early valve failure. (we ran the heads with and without the in port guide and the difference was negligible, so we opted for longer head and valve life.)
 

And, we added a valve spring spacer to allow high rev operation.


 

We invite you to send in your heads for quick turn around.
 

$450 per set

We recommend these heads be used with our newly designed roller bearing roller rocker arms and heavy duty push rods. Our new rocker arms are robust and the bearing rollers free up even more power.