https://books.google.com/books?id=S7rgkZ...995&f=false

read the blue box Econo Head,,,,tells you what length valves are needed...

Harland Sharpe sells rockers for the econ head.w2...1.5 or 1.6 ratio.

the MP or Crane w2 rocker are no longer made by Crane...Ductile Irons ones are no longer made...Both can be found on Ebay at times..last time I searched ebay there were a couple aluminum ones for sale.

Last edited by 70AARcuda; 11/30/17 02:03 AM.
Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)