I have had a lot of questions on this motor. Here are more details....
I shifted the motor at 6800-7000. These short stroke motors will take a lot of RPMs. If you are going to lean on the motor real hard....I would put a set of rods in it.
The motor makes a lot of power for a 500" motor. It made almost 1000hp on the dyno. The heads are probably some of the best flowing A460s on the planet. However it should be noted they do have epoxy in the intake and have been gound on extensively. If you are serious about the engine just contact Charlie Evans he can tell you all about it.
The valves have lash caps. I put these on during the last valve job. I had the ends of the valves trued up...The lash caps were a better option than $120.00 each valves. It has fairly new K-Motion K1000H springs. I would say less than 30 runs on the valve springs. It has a stud girdle, and herbert rockers.
The crank is a sonny bryant, It is a BOSS block. BME rods, and Probe pistons.
The block is filled to the bottom of the water pump holes.
If you want to see the dyno sheet....just send me your fax number and I will fax you a copy.