Hi all.. Just scored a Holman Moody 351W boat engine for my F100 project.This is the forward rotation engine of the tandem engine setup.I've searched the internet for info on this engine and haven't found a whole lot .I am wondering what the cam specs might be ,as well as the compression ratio .I did read that the Ford boat engines generally got the heaviest duty parts such as rods . The fellow that I got the engine from,wants to sell the remaining engine as well as all the marine equipment such as the two Velvet drives, manifolds,props and so on.Thanks. Steve (V7)
You might try Holman-Moody themselves.... http://www.holmanmoody.com/ Or...these guys-they reproduce old marine engine manuals and they seem to have one for your engine. http://www.marineengine.com/manuals/holmanmoody/
The guys at HM have always been friendly when I've called and asked questions. I found an old HM scoop once, and they were more than helpfull.
Both engines were seized up.I got the forward rotation engine that I will be using freed up tonight.Still seeking additional info.Thanks for everyones' input. Steve (V7)
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I know this is an old post but if you decide to part with any of the marine components on the engine I'd be interested. I'm gathering parts for a boat restoration and don't have the original engine. I believe it originally had a Holman Moody engine from the factory. I have found a 351 Ford from a truck but don't have any of the marine stuff.
Old post, found this site while digging for HM marine engine info. FWIW, I am ALWAYS on the lookout for marine parts, and occasionally engines. I am heavily involved i the Donzi restoration world where a lot of these engines are used. Cannot read your tag (hey, its early) but heres the codes: First descriptor is a letter identifying the - BLOCK ID (cubic displacement and type) A= 427 & 427 SOHC B=289 C=460 D=302 E=351W G=494 H=429 HEMI K=429 M=428 Second descriptor is a number identifying the - YEAR (of production) 7=67 8=68 9=69 0=70 1=71 2=72 3=73 4=74 5=75 Third & fourth descriptors are letters identifying the - BUILDER (marine grade assembler/tuner) HM= HOLMAN MOODY Fifth through Eighth descriptors are numbers identifying the - SERIAL NUMBER (production number in that block size) XXXX -PRODUCTION NUMBER Ninth descriptor is a number identifying the - ROTATION (crank rotation) 1= LEFT HAND 2= RIGHT HAND Tenth & eleventh descriptors are letters identifying the - COOLING (the cooling fluid set-up) RW=RAW WATER FW=FRESH WATER The last descriptor(s) are letter(s) identifying the - DRIVE (system the engine is connected to) I/O= INBOARD OUTBOARD T= 12 DEGREE V-DRIVE Z= 0 DEGREE V-DRIVE
Beware of rust in the water jackets when used with an open cooling system (raw water). Thin wall engines will get the castings thin and/or pitted around the cylinders. Acid dipping and sonic testing is sometimes necessary. Steve
Hi: I purchased an old boat with holman Moody - Looks like a 351 Ford engine and outdrive - The exhaust manifolds are missing. will to sell - make an offer [email protected]