I found a good running DI V2203 for cheaper than the 134 rebuild. I'm likely gonna try this out. Also with a turbo these do about 70-75HP, which is about a 50% gain in HP during the usable band of an Fhead - which is about the same as this Kubota. No added weight, and fits in the same spot as an FHead with minimal re-engineering. FYI my Roxor has roughly 90-100HP right now and it scoots. No lacking in power. Dropping 500ish lbs and 20ish HP and I'm sure the CJ5 will perform admirably. I need it more for farm type work than 1/4 times.