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ECZ-C heads

Posted By slick56 12 Years Ago
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ECZ-C heads

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slick56
Posted 12 Years Ago
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How are the compression ratios arrived at with these heads? On J Mummert's site, the 272 2bbl has a ratio of 8:1, the 292 4bbl has 8.4:1 and the 312 has 9:1.
Are the heads actually different, or does piston/deck height on the different engines determine compression?
Reason I ask is I have recently acquired a C2 truck engine with ECZ-C heads.



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Forum Post ECZ-C heads By slick56 ( 12 Years Ago )
Forum Post It's (theoretically) the ratio of max chamber volume to min chamber... By The Horvaths ( 12 Years Ago )
Forum Post [quote][b]The Horvaths (8/26/2013)[/b][hr]It's (theoretically) the... By The Master Cylinder ( 12 Years Ago )
Forum Post My apologies if I over-simplified it. It's that whole... By The Horvaths ( 12 Years Ago )
Forum Post ECZ-C's are good for turbo engines. We went 8.885 on a quartermile... By Hollow Head ( 12 Years Ago )
Forum Post Keeping it simple, compression is (Cylinder Volume + Combustion... By charliemccraney ( 12 Years Ago )
Forum Post If we start with [quote]the 272 2bbl has a ratio of 8:1, the 292 4bbl... By jrw429 ( 12 Years Ago )
Forum Post [quote][b]jrw429 (8/26/2013)[/b][hr] we get (272 + X) / X = 8 or... By The Master Cylinder ( 12 Years Ago )
Forum Post [quote][b]jrw429 (8/26/2013)[/b][hr]If we start with [quote]the 272... By The Master Cylinder ( 12 Years Ago )
Forum Post You're getting there, You'd also need the volume of the head gasket.... By pegleg ( 12 Years Ago )
Forum Post Of course Cyl head volume is usually expressed in cc which stands for... By Doug T ( 12 Years Ago )
Forum Post Actually, I used the whole engine displacement. Divide by 8 for one... By jrw429 ( 12 Years Ago )
Forum Post A side note on all these cylinder volume calculations. According to... By PF Arcand ( 12 Years Ago )
Forum Post Dont forget the 312 has a longer stroke than the 292-272 so you are... By Y block Billy ( 12 Years Ago )
Forum Post Jim, The heads are all the same. Check out Mummert's site, I think he... By pegleg ( 12 Years Ago )
Forum Post [quote][b]pegleg (8/27/2013)[/b][hr]Jim, The heads are all the... By DANIEL TINDER ( 12 Years Ago )
Forum Post Simply increasing the engines cubic inch displacement will... By Ted ( 12 Years Ago )
Forum Post Daniel is correct in that some 272’s did come with factory... By Ted ( 12 Years Ago )


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