"From stock replacement, to street, to full race,
MK Racing heads always exceed my expectations"

- Andy Wallace

"I have known Marc for a number of years. In that time his knowledge of cylinder heads,
intake manifolds and most other things relative to air flow in a high performance engine has
proved to be an advantage to our program. Marc has applied his techniques to several things
in our combination, with very good results. When it comes time, and it always does, to step up
our program I will certainly use Marc Konarik Racing Heads to keep us at the front of the pack."

- Rick Hanson
63 Corvette
Texas Pro Stock Association