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| Mill Head or Deck Block-Which is best? https://slantsix.org/forum/viewtopic.php?t=2502 |
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| Author: | S/anted [ Wed Aug 01, 2001 9:51 pm ] |
| Post subject: | Mill Head or Deck Block-Which is best? |
When attempting to raise the compression ratio, what is the consensus on milling the head or decking the block? What are the pros/cons of each option? I've always had my own opinion but I'd like the benefit of other's thinking on the matter. Thanks Mike msimpson@millenicom.com |
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| Author: | Chad [ Thu Aug 02, 2001 3:01 am ] |
| Post subject: | Re: Mill Head or Deck Block-Which is best? |
Quote:
: When attempting to raise the compression ratio, : what is the consensus on milling the head or : decking the block? What are the pros/cons of : each option? : : I've always had my own opinion but I'd like the : benefit of other's thinking on the matter. : : Thanks : Mike ok pops, you already know what im gona tell ya! deck it, deck it , deck it! beardliz@msn.com |
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| Author: | Dart270 [ Thu Aug 02, 2001 8:11 am ] |
| Post subject: | Re: Mill Head or Deck Block-Which is best? |
Quote:
: ok pops, you already know what im gona tell ya! : deck it, deck it , deck it! I've had good luck milling heads, just for convenience since I didn't pull the shortblocks out of the cars when I upped compression. So far I've done angle mills of 0.100" intake/0.200" plug side, and 0.080"/0.180" with no trouble. This gives you a little smaller diameter combustion chamber ("closes" it a little). In the future, I will probably do a combo of decking and milling to keep more material in the head lower deck, although I haven't seen any ill effects in 70k combined miles (50k, '68 Dart, 20k '64 Dart). Just make sure to calculate, then measure (after milling), the comb. chamber cc's and/or deck fill volume so you can calc. your compression ratio. The angle mill changes the angle of your header (and intake) a bit so you might have to think about that, but it is pretty slight. Happy building, Lou |
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