Shelby Aluminum

[steelcomp]

Cracker,
I didn't take time to read the entire 6! pages of the thread you suggested, but clearly there's a lot of doubt. Unfortunately your test isn't going to prove anything. Cubic inches =HP. A 427 is a big small block by comparison, and has a restrictive bore size right off the bat. I don't doubt that the 482 and 496 engines could make 600 hp, just not with 10:1 and idling at 800 rpm. All he's going to do is rebuild your motor, maybe get another 30 or 40 hp out of it, it will be that percentage less reliable and drivable, and he'll dyno it straight up, so there won't be any variation on the other dyno, and say, "see, I told you!" The HP won't be any thing like these other motors, and he'll just claim it's because of the cubic inches. What needs to be done is take one of these motors like Ewing's that was already dyno'd with their inflated no.'s to an independant dyno, and see if the same no.'s come up. That would be the only true test. Simple.
Contemporary state of the art race motors from Ford Racing were getting all they could wring out of these motors with exotic gasolines, huge roller cams, 14:1, and fuel injection, just to get high 600 hp ratings...maybe 700 with the TP heads, and turning them 7000. And these engines were hand grenades! Pull the pin, light 'em off, and hope they made it to the end of the race. The engines are basically the same today. No one has really come up with a "better" head. The castings are limited, and so are the dimensions of the engine. They were pretty crude back then, but things haven't changed enough in the FE world to have ONE GUY, out of all the rest, be getting such drastically different results. It stinks, and untill someone takes Ewing's 760+hp 10.5:1 800rpm idle 482"motor and dyno it somewhere else and get within 10%!, I'll never be convinced.