425 Diesel more power than 585

You mentioned in your reply to the post on 6-71 Detroit to GB Diesel about 452 Diesels built with more power than the 585. I have a GTB diesel I have restore stock as it was one of the first built, but I also have a GB diesel I am going to rebuild and would like any info I can get on pushing the power up (without!! having Bill Gates money). Bore? Stroke? Barrels? pistons? increasing compression?

Maybe I'd better clarify this to everyone when the 425 has more power than the 585 they are no longer 425 cid the are 670 cid or bigger. You should be able to do some of the things people are doing to the non-diesel's 4 3/4 + 0.60 bore in the 504 blocks should give you no problems with a 605 crank offset ground for 283 or 425 early non-diesel rods, the late 425 and the diesel's have a bigger rod. For the short durations you will be running it should hold up very well. That is as cheap and easy as you probably can get together and keep together if you want to be bigger than a 585. I would think there are people that are bigger but I'd also think it would take more money. Now this is an engine in theory. I've never done anything like this so you will have to talk to someone who has built one or something close to it (I'm sure there are some) and find out what they did, what parts they used and how well it worked. I've seen some very impressive G and GB diesel's pulling! Try putting a post on my board and Tony's and see if someone can help you some more. I'm sure there will be some people that will tell you it is cheaper and easier to get power out of the non-diesel's (which it is) and they will tell you to forget pulling the diesel's but don't give up if you want one you just need to talk to some one that has done one.

Jeremy

• TC&MM tractor & pulling!