Closed Deck Blocks - What are they and why would I want one?

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27 November 2002, 06:59 AM

Makalu

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Just curious as I see the term used around ScoobyNet quite a lot.

Mak.

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27 November 2002, 10:17 AM

nom

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It's a block which is closed rather than open

Tougher/less likely to distort (heavier), can be run with higher boost.

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27 November 2002, 12:29 PM

Trout...

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There is a pic of one in the 2l to 2.2l thread posted by SMG!

Trout

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27 November 2002, 01:29 PM

swan

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I'm sure there's a really good technical explanation but in "plain" English:
Closed block - more metal between the cylinder heads means the block is stronger as isn't "open".
Open block - has less metal betweent he cylinder heads.

You'd want one if you're going to push up the power to funny levels and perhaps for a bit of insurance.