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Author Topic: Milling specs needed grupe56 ¯ Member # 5329 posted                                 Alright, here goes. I got burned BAD on a trade with "foxbody" - Steve in San Jose. Traded a MAC plasma cutter (damn near new) for what was supposed to be a 26 k rebuilt 5.0L w/ all of the accessories on it out of a wrecked 90 Stang. Took the engine apart today (picked it up on Saturday) and the damn thing has been punched out .040 over with evidence of heavy scarring in the cyl's - all of them. The top of the pistons were caked in burned oil (severe consumption problem) and the heads were pretty much the same. My question is, what are acceptible bore diameter #'s for a 5.0L - I can get pistons and rings for as much as a .050 bore job, but that's a little excessive I think. Any info would be greatly appreciated. Thanks. G-56 Posts: 42 | From: Red Bluff, Cal | Registered: Feb 2005  |  : JohnB Tech Moderator Member # 969 posted                              If they are scored that bad, I seriously doubt .050 over is gonna clean it up. Find another block and use the existing pistons if they are decent. Sucks to hear you got the shaft! -------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500 Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002  |  : AJBlackGT ¯ Member # 3936 posted                              Yeah the 5.0 block has pretty thin walls so i wouldnt go more than .040 over. -------------------- 90 Notch Posts: 1896 | From: Sacramento | Registered: Dec 2003  |  : stoauto ¯ Member # 2803 posted                              i'd get another block. Posts: 1054 | Registered: May 2003  |  : Fostang ¯ Member # 3752 posted                              The Castro's strike again....More at 10 Total bs man can you take it back? I'd be pretty fucking pissed off over some bullshit like this. But yeah nothing left but to start over. [ February 21, 2005, 08:40 PM: Message edited by: Fostang ] -------------------- 67' Fastback TT 408 67' Camaro Lsx 64' Corvette Fuelie 57' Chevy Bel Air Lsx 68’ Pony Convertible 66’ Pony Coupe Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003  |  : grupe56 ¯ Member # 5329 posted                                 No kidding. Hey if anybody out there knows of anyone selling a decent core or fresh rebuilt - one that can be verified, let me know. As far as getting the shit end of a deal - time and chance happeneth to us all. Thanks. G-56 Posts: 42 | From: Red Bluff, Cal | Registered: Feb 2005  |  : JohnB Tech Moderator Member # 969 posted                              Notch1320 has had a core 302 on the board for some time. I think he was only asking $50~ -------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500 Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002  |  : Fostang ¯ Member # 3752 posted                              yeah Shaun Notch1320 will even include a shipping crate for $50, so you can ship that bs block back to it's origin. [ February 21, 2005, 09:07 PM: Message edited by: Fostang ] -------------------- 67' Fastback TT 408 67' Camaro Lsx 64' Corvette Fuelie 57' Chevy Bel Air Lsx 68’ Pony Convertible 66’ Pony Coupe Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003  |  : 93PONY Mr. Valve Events Member # 60 posted                           91PONY's stock block is punched .050 over. I sonic checked the block at key points on each cylinder & could have easily gone .060 over. (actually .070 was not out of the question) For those concerned with Head gasket sealing, consider this....stock Ford HG's have a 4.100 inch bore. Same with most of the aftermarket HG's. 4.050 is a common bore & several OTS pistons are avialable. Used blocks are also easy to come by. -------------------- www.advancedenginedevelopment.com SCT dealer Dynotuning (916)715-7569 Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000  |  : BlueOvalRacing ¯ Member # 1531 posted                              Bring him back the junk and get the plasma cutter back - I still have the GT40P long block (std. bore & unmolested) Posts: 1159 | From: Pioneer | Registered: Jul 2002  |  : wilit Mustang Messiah Member # 3367 posted                                 I went .060 over on the 351 in my Bronco. No problems yet. Also, that a tough lesson learned on buying a used motor. Always do a compression check and take the heads off before agreeing to buy a used motor. -------------------- "If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr. Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003  |  : Blue Oval ¯ Member # 2548 posted                              hey bud,sry to hear u got screwed,i have a 302 roller block id be willing to give u, standard bore,i just would like it out of my garage and into a good home. -------------------- 65 Coupe 306, AFR's 89 Cali. Ed. Saleen "sold" BAB 89 GT 08 Yamaha R6 Posts: 2345 | From: Sacramento | Registered: Mar 2003  |  :

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