• Welcome aboard HomebuiltAirplanes.com, your destination for connecting with a thriving community of more than 10,000 active members, all passionate about home-built aviation. Dive into our comprehensive repository of knowledge, exchange technical insights, arrange get-togethers, and trade aircrafts/parts with like-minded enthusiasts. Unearth a wide-ranging collection of general and kit plane aviation subjects, enriched with engaging imagery, in-depth technical manuals, and rare archives.

    For a nominal fee of $99.99/year or $12.99/month, you can immerse yourself in this dynamic community and unparalleled treasure-trove of aviation knowledge.

    Embark on your journey now!

    Click Here to Become a Premium Member and Experience Homebuilt Airplanes to the Fullest!

mercruiser 470


Well-Known Member
Apr 1, 2011
Palm Bay Fl.
hello, after rebuilding one of these for a customers airboat would make a realy nice airplane engine.
Its half of a ford 460 big block. stock form has aluminum block and iron head but any aftermarket head for a 460 big block ford will fit.
so lots of aftermarket support. also it was used as engines for midget race cars and has a centrifugal water pump driven off the timing gear, and has a stator type alternator directly behind the crank pulley.
and here is the page with a lot of info.
The elusive 224/3.7 MerCruiser banger - THE H.A.M.B.

oh and to make it even better it has a chevy bolt pattern. with a good aluminum head, good intake manifold, and good exhaust its one potent combination and direct drive was enough to push a 3 seat airboat to run on dry ground. Would be realy good candidate for aircraft use because of no belts to drive water pump or alternator.