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Dan Willms's 1966 GTO
(In His own Words)

Dan Willm's "Class of 66" GTO. SD Performance power is let loose on this pass at Mission Raceway's Park!


News & Events

Where we are at post fire
It's been a very difficult 7+ months since the fire which basically destroyed our world occurred. We more >>
What's going on at SD in 2020
We're keeping plenty busy in the shop in this crazy world we're all living in. Demand for our CNC ported more >>
End of 2018 is fast approaching!!
Well it's been a while since we had an update on what's been going on at SD so here's a quick overview. more >>



Engine Specs.
455 block and stock 455 crank, 482ci, Edelbrock heads, Victor intake, Ultradyne solid roller cam.

Best ET to date 9.10 @ 146mph with more to come

Built engine in 2003 and only one check up teardown so far with no failures.