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02-08-2003, 10:22 AM | #1 |
Registered Member
Join Date: Feb 2003
Location: NJ
Posts: 81
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Question about engine rubuilding
Hi there i have a 86 gt with a 302, im geting the kit to rebuild it and it ask ask about the rod and main bearings being under sized or standard. is mine standard of undersize.
thanks alot |
02-08-2003, 10:50 AM | #2 |
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Join Date: Apr 2002
Location: Fordland
Posts: 117
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Well, you really have to take the engine apart first. Depending on what the crank looks like, (whether it can be polished up, or refinished) will depend on what bearings you'll need. If you can polish the crank back, you should be able to use the standard bearings. If the crank needs to be re-chromed, you'll need the undersize, since the diameter of the crank will be larger than before.
I'm in the same boat right now. Anyone actually gone through this from start to finish with a re-chrome? Thanks, and if I'm wrong about anything above, please someone fix it!
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'88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph |
02-08-2003, 02:19 PM | #3 |
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Join Date: Apr 2002
Location: Holland, Michigan
Posts: 73
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You'll have to pull the crank out and bring it to a machine shop and see what they need to do to it. or if you have a micrometer or calipers you can check it yourself. if the journals are tapered or scored real bad it will need to be turned.
UglyFast88, where you at in GR?
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