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DAN7218
09-28-2013, 07:07 PM
I know this has been posted in the past, however I have been unable to locate it through search. I am looking for the information on decoding the year on the Holman Moody tag.

mattyboy
09-29-2013, 07:55 AM
Post all the info on the tag I can help you decode it

DAN7218
09-29-2013, 10:10 AM
Post all the info on the tag I can help you decode it

OK here it is. I understand most of it, really want to know the year.

B8HM-2092-1-RWI/O
CPM-271-4v
C.R. 10.5:1 TIM. 12

Thanks for any input.

mattyboy
09-29-2013, 10:21 AM
OK here it is. I understand most of it, really want to know the year.

B8HM-2092-1-RWI/O
CPM-271-4v
C.R. 10.5:1 TIM. 12

Thanks for any input.


B=289

8=1968

HM = Holman Moody

2092= serial number of block 289 start with 2 302 start with 3 351 start with 4

1= standard automotive rotation

RW= raw water cooled
I/O inboard outboard drive

CPM-271-4V = 271 hp 4 bbl carb

CR 10.5 1 Tim 12= 10.5 to 1 compression 12 degrees BTDC timing

a K code 289 Hi-Po motor

hope that helps wish my classic had come with that motor what is it pushing ?? post some pics

right in the time frame when they were changing the 289 into the 302 is the motor original?

DAN7218
09-29-2013, 10:45 AM
Mattboy That helps a lot thanks for the info. That's not the engine That was in it when i got it, however most of the H/M stuff was still intact. Just attached to a 302 the drive is the original Holman Moody / Volvo 200. As for the boat the exact year is unknown it was registered as a 72 when i bought it. Its an 18 2+3 barrel back. I pretty much knew it was not a 72 based on the hull number i was able to narrow it down to the 68 69 range, looking at other barrel back hull numbers. Having the engine year just confirms my finding. I will get some pics up soon.

mattyboy
09-29-2013, 10:51 AM
Dan
My hornet was the same way the bell housing was there but the 1968 289 was long gone let me see if I can find anything more out for you

DAN7218
09-29-2013, 11:43 AM
Matt I tried to reply to your pm but having trouble, keep getting an error.

Hull # C18-209. I tried contacting Donzi years back and they very politely told me that the archives had been moved. I later found out to a dumpster during the OMC years. your help is greatly appreciated. I have owned the boat for over 20 years it would be nice to know more about it. Thanks
Dan

mattyboy
09-29-2013, 01:58 PM
sorry my inbox was full emptied now