This doesn't sound right to me. I've seen/read some people saying that boring the block for a rebuilt on the 7.3 isn't needed very often, for the most part just new rings, gaskets, bearings, and misc. stuff is this correct? I'm looking to do a tear down here in the near future (depends on the wife purse strings LOL) and I'd like to make the ol'girl last until I die So with that said... I have just shy of 240K on it and I'd like to bump up the power to around 400-500hp range and have piece of mind of not dumping alot of cash and then losing it all because I was being cheap. I have tons of questions on the matter of what and how I should go about building good powerful power plant. BTW it's a daily driver that when I pull trailer its usually around 15,000-25,000lb average. The Edge Evo. is on it's way out too. Any advice would be great. Thanks, Brent

 

just bore it out enough to clean up the cylinder walls, as to get to 400-500 HP some 238/100 hybrids, and a garret ball bearing should set you up just fine, or go the extra mile and get a hypemax kit that you can upgrade as you go, and get some custom tunes on a 6 pos. chip from someone of your choice, beans, swamps, PHP, etc...

 

Dont even need to bore it if the walls are fine. Line hone it, new pistons and rings and move on... A full IH rebuild kit from RiffRaff is about 1100 IIRC.

 

Thanks for the info! I don't think I need to bore it, but I'd like to check the compression first. Does anybody know how much a compression tester cost? But it still runs like a top. It does have a small oil leak from the back of the pan tho(maybe have to add 1qt between oil changes). I checked the valley and it looks fairly dry only a light film of oil, looks like from the valve covers to me. I don't have an oil pressure gauge that reads in psi but the dash gauge is almost 1/4" from the high mark cold or hot. I was not sure how much I can do to it without breaking the bank and keeping the spouse happy too. As for pulling a heavy load its only 2-3 times a year when hauling mining equipment up to the claim.

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The price I got from NAPA for the right tester was over $200 and harbor freight has one for around $150 but they also have a cheep one for $30 that doesn't come with the 7.3 adapter so I took an old glow plug and used it to make the adapter.