About Us

At Tri-Mark every cylinder head is custom ported to your specifications. rules, gauges, runner volumes and  customer preferences are as diverse as the 1700 or so race tracks in the US and Canada.

We here at Tri-Mark aim to give you the best product for your situation. Our customers range from Canada to Florida, East Coast to West. Cylinder Heads range from crate engines to diesel  truck and tractor pullers.  We have the ability to acid port, media blast and CNC tool paths back into certain castings to keep with the factory appearance.  Give us a call with your all of your cylinder head needs today at (608) 768-2900.

Tri-Mark Performance uses top notch equipment for every set of cylinder heads.  Starting with the valve guides which are always honed never reamed. This gives us a perfect pilot fit for our Serdi valve job to insure the best possible run out and near perfect sealing for the valve to seat. The valve job is head specific for the best possible flow.

 We use CNC assisted hand finishing techniques for most all of our heads. This allows us to insure that the head flows what you need it to flow and that all of the casting variables are transitioned properly to make sure the work is undetectable to the naked eye. We can angle mill and correct all surfaces to the combustion chamber volume you specify. As always we offer the ability to port your used heads all the way through new castings completely assembled ready to bolt on.