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the pic of the white boat $500, 200lbs old pro did beat 2003 APBA short course nat and AOF nat winner from behind 3 heats at Camden NC oct 2003. There are a couple d mods out there that are faster...

send me two blocks , will port behind liners , set up head for your fuel , make bolt on out the mid pipe(with removable beer can silencer) , mod intake system to engine set up . I keep one short...

Sounds good so far, how far apart are cylinders ?
Pull head lets look at it.

Are these engines Available?
How much for a beater to rebuild?
How many rpms will these turn w/o flying apart?
What is bore centers distance?
What is rod/ratio?
Can you take good pics of block...

Yamaha SUPERJET 701 TWIN
comes stock with individual tuners similar to the 60 twin, makes 73 hp , with twin 38mm carbs and several other similarities to the 45.
Difference is in the late nineties...

Talked to OMC Tech that developed 45ss tuner and learned that they tried over a dozen pipes. Two cylinder will NEVER do what Triple does from a tuner cause there is no cross plugging going on. Two...

The 45ss 740cc twin easily will make 90hp on pump gas @ 7,000 rpm.
The cranks are good right from SEAWAY Marine. all we did was check for T.I.R. on mains, Cryo by "Three Hundred Below" and go....