624 HP Blown 383 on the Dyno

[Flash68]

Originally Posted by GregWeld

Yes they have been laying 'round looking for a good use for 4 or more years now... however - they would not fit a standard set of heads - they were 450 offset arms for the big Canfields valves...

That's right.. forgot they are head specific.

Originally Posted by GregWeld

Dave -- You may or may not have read my post about it not being my first goat rodeo ---- and some comments I posted about a motors "rate of RPM"....
My 406 is done NASCAR style - Honda rod journal size - small rod end - with the reduction in reciprocating mass....


So check out the two dyno sheets comparing my longer arm 406 and the blown 383 - the FAR RIGHT column that shows RPM Rate of increase -- and compare it against the 383's.....

I read something somewhere about your wishing to use some tools... or something like that.

Did not read about rate of rpm... but am interested? Which thread if you don't mind? I didn't know your 406 was built in such badassedness style.