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| WagonDad |
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Hey Guy's, any one know the standard piston dish for a EF piston in CC, just trying to get an idea on static compression to arrive at 9.8 : 1.
I have got the bore 92.25, stroke 99.31, gasket 7.5cc and will be measuring the deck height and CCing the combustion chamber early in the week and will probably CC the the bore at TDC as well but the dish CC will help confirm measurments.
_________________ 4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
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| gogetta |
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8.5cc i believe....
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| cjh |
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Go to the ACL pistons website, they have all those measurements.
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| WagonDad |
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Thanks gogetta, I have been to the ACL website and cant find the standard piston dish, they have a 5cc race series piston but no specs for standard, if it was there it would be good to confirm gogetta's 8.5 cc figure. Just checked the piston to deck height and its 0.00.
_________________ 4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
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| WagonDad |
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OK every thing is measured, The standard piston dish is 8.5cc as gogetta said, I got 9cc with the piston at TDC so .5cc for valve relief and the small amount the piston is below deck height almost flush, got this by CCing with pespex and syringes. With the AU gasket I get 9.877 and with ACL composite gasket I get 9.413.
_________________ 4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
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