Guest Anonymous Posted October 25, 2001 Share Posted October 25, 2001 Hi Everyone, I have a most of the parts compiled to start building a normally-aspirated stroker engine (P90 head, 9mm L24 rods, Turbo F54 block, 460L 270/280D cam set). Now for the dilemma. Pistons and Rings... I can keep looking over the scenario, and I am lost as to how I can choose pistons. Is there some way to figure out an ideal compression ratio (@ 10:1)? I do not wish to overbore the block past 88mm if I can at all help it. I would also like to keep the block and the head from being shaven. Is there a formula out there to calculate the measurements (pin height, stroke, head) to ensure that I can put a certain type of piston in without worrying about piston-valve clearances? I would hate to spend the money buying pistons on a hypothesis of mine, and then find out that they won't work. Any help at all would be appreciated. Thanks, Ryan Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted October 26, 2001 Share Posted October 26, 2001 Hey Ryan Here is a link to an article on zhome.com that has some info on pistons and some other stuff: http://www.zhome.com/ZCMnL/tech/128combo.html Hope it helps. Rob Quote Link to comment Share on other sites More sharing options...
Kennysgreen280zt Posted October 29, 2001 Share Posted October 29, 2001 i am looking into Z31 pistons right now , i found some turbo ones at the junk yard but two were toasted , i bought one and measured it , i think that a non turbo z31 piston would work , it is 87mm and with the p90 you have should get some alright compression #'s. hope this helps ya out ~Kenny Quote Link to comment Share on other sites More sharing options...
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