This is the first time I'd seen these heads. I figured the engine would make 850 hp since the compression wasn't that high and the cam was an off brand. But when we opened the throttle the engine started to howl and the needle spun on the HP gauge.

Funny thing about this engine is that the customer who brought it in bought it at the track from a guy who was pissed at poor performance. Guy was so mad he sold the engine for $10K at the track. Probably cost close to $40K to build an engine like this with all new parts.

We didn't have the heads off the engine so I wasn't able to look them over carefully. The Brodix website says the 366 cc version flow 423 cfm @ 0.800 lift. The 380 cc version flows 440 cfm. I think this engine has the 366 cc version since the ends of the heads are stamped 366. But there isn't any other information on the heads so I'm not sure if that is a cc stamp, or if it some random date stamp or foundry mark.