John Deere G 7 1/2 block

[Bert Thralls]

I would like to know if you have had any experience with installing a 7 1/2" bore block in a John Deere G.
The block I am referring to is custom made by "Rick Thornburg" from the Georgia area. (I may not have his name spelled correct.)
Any information or leads would be appreciated.

 

[BushogPapa]

I don't but, you will need to know what clearancing and Grinding you will be in for..!!!
Guess you will not be running any stock stroke either...!!
They ARE awesome.....!!!!!!!!!!!!

Ron.

 

[Anonymous-0]

It takes alot of work, grinding, milling your cam gear thinner, plus you gotta brace the whole tractor together so it doesn't break in half ( there's YouTube videos of this happening) it's crazy to think it would actually work

 

[old popper]

I saw one break in two at the Clay County Fair at Spencer Ia. several years ago. It was not a pretty sight. I'll leave mine at .125 over stock.