Any of you guys have used Todd McKenzie in Oxnard CA for cylinder and valve train work? I think he is the one that does a lot of Porsche head work for Proto and others. I spoke with him today and he seemed like an extremely nice and knowledgeable guy. For my 3.8 race motor rebuild (650 whp) application he recommended going +1mm on both the intake and exhaust valve along with porting both intake/exhaust, his upgraded valve springs, guides and seals. Locks and retainers would be reused. He said that 7500rpm would be absolutely no issues with this set up. I have sort of narrowed it down between Todd and Extreme cylinder heads in Florida that does CNC head porting on the Rottler P69 and has a lot of Porsche experience also. I believe Todd does hand porting. Thoughts, comments?

 

is either company wiling to provide flow charts before and after porting and polishing to show their improvements? easy to screw up the heads and very expensive to replace

 

Todd aka Blackhorseturbo has McKenzie Heads and tuned by Protomotive. His car is amazingly fast especially considering the amount of power it dynoed. I think he Dyno 1100 hp and I have seen him pull UR 1250hp G car.

 

Another company worth considering, HeadGames in NJ - http://www.headgamesmotorworks.com


They've done some work on the Porsches coming out of Undercover, in addition to the USP Motorsports 996 GT2 (IIRC)

 

I have the first set of cylinder heads Dave @ Headgames did and the numbers that I achieved 2 years ago have only been touched by a few cars to this day. The car still has the same heads and will be making a reappearance very soon.

I wouldn't think twice about having Dave do another set for me.

 

Dave is good people and did a Supra head for me. Very up front and honest man, I'd use him again in a heartbeat if he told me he could do the job.

 

Chris???? I can't wait to see your beast hit the streets again. Welcome back!