SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: TEAMSDSU on February 24, 2016, 12:59:34 PM
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Gentleman, just pulled this old beast out of the Jet Boat and wanted your opinions on what to change and where to start. Remember I'm a noobe when it comes to these 460 motors. The heads are stamped ( D3VE-A2A) and the block seems to be (DIVE-B015-A2B). Are these good components or should we change them out?
Thanks for your help in advance, any input is welcome...
Shawn
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What kind of hull?
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The bottom end on the D1VE is good you just have to keep your tolerances for a boat as far as the D3 heads those aren't the greatest I would suggest port work on the intake and exhaust if not making the valves bigger also so the Motor breathes better if you want to make that kind of horsepower you have to let the motor breathe if it can't get air into it and get it out it's all for nothing
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My motor is 8.6 to 1 compression ratio pump gas friendly ported polished DO VE heads bigger intake and exhaust stainless steel cables three point valve job manly push rods Scorpion roller rockers and a custom ground cam I am 256 at 50 and 108 lobe separation and achieve 470 horse with my pump work jog swap with stuffer I am either just shy or just above 80 in my 79 Tahiti
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It's a 77 pioneer jet boat. What are your thoughts on "fereria" (if that's how it is spelled) heavy duty valves for the head?
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I had my BBF bored out to a 466 with forged pistons at 9.5-1 with stock crank an connecting rods. Have stainless valves an non-adjustable scorpion roller rockers in my ported D3's(smog hole welded up). Cam is a Schneider 284-88h-12. I have a heavy spectra 18 with pump work an hit 70...I also have logs/snails exhaust.
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Awesome! So it's doable with the logs.... I've been told to ditch them, but it's a plug and play if I leave them in.