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  351c piston to bore clearance

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Author Topic:   351c piston to bore clearance
Mark From Detroit
Journeyman

Posts: 29
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Registered: Apr 2001

posted 05-07-2001 06:52 PM     Click Here to See the Profile for Mark From Detroit   Click Here to Email Mark From Detroit     Edit/Delete Message   Reply w/Quote
I just recieved my engine back from the machine shop today. I started double checking all there work and am coming up with .003-.004 between piston and bore measuring 90 from wrist pin. The pistons are L2379 forged TRW. The box is marked .0015 minimum clearence mearuring 90 from wrist pin. Is this a little sloppy for a street motor?

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Moneymaker
Administrator

Posts: 19686
From: Lyons, IL, USA
Registered: May 99

posted 05-07-2001 07:06 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Not for a forged piston Mark. they require more clearance than cast.

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Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
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SteveLaRiviere
Administrator

Posts: 32961
From: Saco, Maine
Registered: May 99

posted 05-07-2001 08:50 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
I run that same piston with the same clearances.

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'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC {Wife's car...}
All Fords since 1977

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Mark From Detroit
Journeyman

Posts: 29
From:
Registered: Apr 2001

posted 05-07-2001 09:04 PM     Click Here to See the Profile for Mark From Detroit   Click Here to Email Mark From Detroit     Edit/Delete Message   Reply w/Quote
Thanks for the reply steve and Alex. I remeasured the two cyl,s with .004 and came up with more like .003. Good thing I didnt call the machine shop and make an a$$ of myself. Everything else looks great! I Cant wait to get the old Stang fired up.


Mark

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