07-13-2010, 11:42 AM
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#2
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ShabahZ280 is currently offline
Status: Admin & Mariah Fanatic
Join Date: Jun 2007
Location: Cincinnati, OH
Find me on the Map
My Year: 1999
My Model: Z280 MCC
My Engine: 7.4L MPI Bravo III
Thanks: 8
Thanked 367 Times in 274 Posts
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Re: risers and manifolds
Usually part numbers are by the engine generation. They're usually identified by the first two letters in the engine serial number. For example, mine is L0, a Gen VI. Check this site, it might help you narrow down which generation you've got.
Mercruiser Inboard/Outdrive
Scroll down until you see the GM V8 427,502,540 and 572. The 7.4L's are listed there.
Hope this helps.
__________________
Chris
-1999 Mariah Z280 MCC, 7.4L MPI Bravo 3 DuoProp
-2000 Mariah Shabah Z250 Limited Edition, 7.4L MPI, Bravo 1 (Sold, but not forgotten!)
-Formerly known as ShabahZ250
-USCG Licensed 50 Ton Near Coastal Master Captain with Towing Certification
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