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02-18-2002, 01:13 AM
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Registered Member
Join Date: Mar 1999
Location: Arcadia, CA, USA
Posts: 731
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Fostang, you can notch the pistons without disassembling the short block. I had this done on my old engine while it was still in the car. Iskendarian makes a special notching tool that uses a junk head as a guide. The Isky tool is just a grinding bit, in the diamteter of a valve relief. The tool fits inside the valve guide of the scrap head. Connect the shaft of the Isky tool to a 1/2" drill, and you've got your valve relief cutting tool.
The piston has to be brought to TDC during the grinding. You might lose a gram or so of engine balance. The alternative seems to be disassembling the short block and sending the internals to a machine shop for cutting and balancing. Hope this helps.
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Russ L '91 LX - 331 w/ Procharger '03 Cobra Convertible - Pullied '94 Lightning '65 Mustang Coupe |
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