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BBC CMI headers and tail pipes.

Boatmaster

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CMI headers. Been on my shelf for a year. $2500 obo. Drew 925-895-3168

Update. These currently have the 525EFI bolt pattern. Flange can easily be machined for the standard BBC pattern if needed. This service is available at Teague and I sure many other capable machine shops.
 

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mattyc

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Will fit 496HO?
I believe the flanges and bolt holes do line up. The difference is big block will have holes for 3/8" bolts and 496 will have holes for 8mm, that just gives more clearance around the bolts. It's not the flanges I think you will have trouble with, its everything else. Oil filter mount and lines, ecm mounting etc. We did a cmi 496 kit on my buddies boat and even the kit intended for 496 left a bunch of stuff for us to clean up
 

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Spray-N-Sand

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What’s the condition? Dents or scratches? Pics are kind-of rough. Have you pressure tested them?
 
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