PCM RH 454 from a BFN

Do you have any pictures?

CCFan members in good standing only! You two clowns can pipe down.

Lmao. Ruthless.

I might be interested if you'll come to Maine and install it in a Penn Yan for free.

Tim, Hollywood
see my post in "off Topic" something about getting married.

How many hours are on it and what prop should I run?

is that a pancake?

How fast does it go?

Would you accept a 72 Lynn Green Mustang Hull, currently covered with paint in trade for payment for the engine? I have access to one, but she will need a little TLC.

Curious,

Donald

Will you trade for a stand up jet ski? Needs minor fiberglass repair.

Trade for a 70s #4 trailer?

Tim, do you have any idea what the HP limit would be running a 454 with wet log through transom exhaust? My jet boat has a tired 454 (though still runs very well) and because it has a motorbox with jump seats on either side I don't think I have room for any sort of aftermarket exhaust. I don't know what my engine was rated at, but going off of an impeller chart it appears to make 330-350 HP now.

I've thought about a rebuild but don't want to pay someone to build a 450 HP engine that is choked by exhaust and can't make it's power.

Really, very interesting. I guess from reading on some jet boat sites I just assumed the logs would limit HP, I know there are comments about reaming out some inside flange edges to maximize flow where the logs attach to the snails. That's really promising to hear you don't think it would be much of a limiting factor. Even though like I said I don't believe they'd fit, I looked at the cost of jacketed headers, and I think they are worth more than my whole boat.

The unfortunate thing is I think I would have been a good prospect for your engine if it was built to put out a bit more power, mid 400's to 500 is kind of what I've had in mind, plus I'd have the donor engine to swap. It's a 60 mph boat now, very stable, and I figure adding a bit over 100 HP would get it to high 60's and be a better match for the hull size/weight in terms of holeshot and mid range. I don't think 375-400 HP would be enough of a difference to be worth it.

Well that makes more sense, I was thinking I was nuts! I do value your experience and knowledge so was all ears. Good to hear you feel I could absorb a power bump, just maybe not as far as I would have liked. I can't say I've spent the time to do precise measurements to see if a non-log exhaust would fit, and could always modify the motorbox, but the little narrow jump seats are handy and wouldn't work if squeezed more by the box dimensions swelling. From my eyeball test I don't think there is room.

Damn, I just picked up an engineless BFN.