what size combustion chambers do I have [Archive]

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dreamsicle

03-23-2002, 07:40 AM

I have a set of BBC rectangle port heads, casting #6272990. Does anyone know what cc combustion chamber they have. I am trying to decide what pistons to buy for my rebuild. Thanks

Tinkerboater

03-23-2002, 09:16 AM

I am not up on the numbers but if it is a MERC. they were all 119 cc I believe -- Hey if in dought just cc one of them.

dreamsicle

03-23-2002, 10:19 AM

It is a Harmon Marine engine on a 1978 Hallett jet boat if that helps

HYDROMOBILE

03-23-2002, 12:07 PM

#990 heads should be 119 cc's. unless the have been milled alot, or angle milled, Jim Brock