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Chamber size - 10207643

LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Chamber size - 10207643

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Jan 10, 2008 | 05:37 PM

#1

Stroked96Bowtie

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Chamber size - 10207643

Anyone know the combustion chamber size of this casting head?

10207643

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Jan 10, 2008 | 05:50 PM

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Teching In

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Aluminum LT1 heads have 54cc combustion chambers.

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Jan 10, 2008 | 05:57 PM

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I thought it was 56cc?

I may be mistaken but I think I've seen both numbers appear in different places.

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Jan 10, 2008 | 06:00 PM

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Stroked96Bowtie

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Thanks for the quick response...what does a 67 or 68cc chamber do to our compression? Im going to call my machinist in the AM but curious what others are running with aftermarket heads. Trying to understand what the compression diff would be opposed to stock combustion chamber.

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Jan 10, 2008 | 06:01 PM

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54CC is the norm,some have said the got their set CC'd and they came in at 55cc and some were 54cc

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Jan 10, 2008 | 06:02 PM

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Quote:

Originally Posted by Stroked96Bowtie

Thanks for the quick response...what does a 67 or 68cc chamber do to our compression? Im going to call my machinist in the AM but curious what others are running with aftermarket heads. Trying to understand what the compression diff would be opposed to stock combustion chamber.

68cc chamber would drop your compression a lot.

Smaller chamber = larger compression.

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Jan 10, 2008 | 08:02 PM

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Stroked96Bowtie

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Quote:

Originally Posted by infinitebird

68cc chamber would drop your compression a lot.

Smaller chamber = larger compression.

yeah and Im looking for higher comp just curious how dramatic of a drop it would be.

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10207643, aluminum, casting, cc, chamber, chevy, combustion, head, heads, lt1, lt4, size, specs, stock, valve

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