Posted by Dave Horvath [162.158.78.85] on Sunday, July 23, 2017 at 23:27:53 :
In Reply to: Re: 251 Early to Late Crossover Head posted by Dave Horvath [162.158.78.85] on Sunday, July 23, 2017 at 23:21:06 :
Here is the block from my 1967 WM300. Block itself is actually no different. But, you can see the both holes for the internal bypass water passage. One hole on top and hole one in front.