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Old 12-08-2004, 01:36 PM
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SCOBRAC SCOBRAC is offline
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Join Date: Jan 2002
Location: Northern California, CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
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Thanks. Yea I figured it was a service block with no production code. I didn't know they skipped I... It is a really thick wall block. I can see the difference at the bottom of the cylinder / wall. it looks a good 1/16" thicker all around where the bore meets the area around the bore. It actually flattens out before it turns up.

I knew all the C blocks I'd seen had additional webbing, so maybe CX is additional webbing with thick walls. As you suggest a HD service block.

Well. it seems I have a check to write. Thanks for the insite.
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