Quote:
Originally Posted by SD421
Tom, on page 184 in Milts book, Milt says that he put a 455 crank into the 428 and then bored it out so it would become a 472 cu inch motor. I guess this would have been in 1988 according to the time Bill Sherman had contacted him to bring the Goat back out.
That's also when he upgraded the valves from the 1.92 intake to the 2.02 intake it is now.
I really wish I lived back there to be able to meet and talk shop with you guys. What a learning experience it would be. 
|
If you do the math on the Wallace racing calculator site, Milt would have had to bore the 428 block out from 4.125" to 4.230", a bore job of .105" which is quite a stretch for a 67-69 428 block to take but possible I guess.. I still go by the 4.375" crank number I was told years ago. Why would Milt have been afraid to turn the engine over 6000 rpm with a factory 4.210" crank and good parts? The 455 HO guys with 4.210" cranks had Lots of Experience at that rpm.
Tom Vaught
__________________
"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
|