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Old 10-14-2014, 09:10 AM   #7
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Join Date: Oct 2008
Location: O.C. CA
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Originally Posted by BoxsterSteve View Post
There's also another measurement, although I forget the proper medical term... It's the measurement of wristpin centre relative to the piston top.
In some stroker motor situations, stock pistons can extend out of the bore @ TDC without a specially made piston set. I'm not sure if it applies in your example, but it did back in the day building a 347 stroker out of a Fox body Mustang's 302 V8.
Piston pin height is the simplest term. When you are "stroking" a engine for max swept area volume & thus max displacement you install a crankshaft with longer "throws". Porsche did this in 2002 with the new 3.6L engine. To offset the additional length of the crank stroke the 3.6L has shorter rods & revised pin height pistons.
In the OP's case the pin height will be off & the piston valve pockets & dome will be a different design. This is one of the reasons LN designed the new pistons for this application.
OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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