Re: max wedge needs more wheaties
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Re: max wedge needs more wheaties



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Bringing up the subject of compression, you mentioned 11:1 static compression with flattop pistons and max wedge heads. The 286 max wedge heads have nominal 87 CC partially open chambers (mine checked out from 87 to 87.5 CC per chamber on heads that had never been milled), a somewhat larger chamber than the standard big block closed chamber heads in the pre-906 days. I think the '63 and '64 have at least that big and possibly slightly larger. With flattop pistons and zero deck, I think that would work out to no more than 10:1 and probably a bit less. I had Ross make a set of pistons for me which I requested that they take my head and block dimensions and give me a true 10.5:1 static compression; those pistons came with pretty substantial domes. So to whatever extent the static compression ratio contributes to the power, it may not be up where it needs to be. The way I understand the interaction between cam and static compression ratio, just from what I've read, the "bigger" the cam, the more static compression ratio you need to get the cranking compression up to make good power.


Bill & Kathi Parker, South Central Indiana
'56 Chrysler Windsor; '60 Chrysler Saratoga; '62 Plymouth Max Wedge; '64 Dart convertible; '65 Barracuda \6; '65 Imperial; '68 Barracuda FB 340-S; '69 Barracuda FB now 360; '72 Cuda '340


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