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Well, after a bunch of layout and machine work the intake flanges are mounted as well as the valley plate locating and boring the distributor mounting hole, now to build the plenum.

Also coated on inside and out, if properly brazed will last over 30 years.

The C85 won't need a reverser.

Lauderdale Speedometer

Ordered engine parts this morning, Autozone was easiest. Now the fun,, spoke with owner, she wants to simplify things, go carburetor and distributor vs the mpfi, I agreed,, so I began shopping, all parts are available except 1 critical piece,,,, intake manifold, shown online all over, all back...

Well it had great oil pressure, so a top overhaul should be ok. Fork in the road,, I'm 55 going on 70. She has a fleet of boats, a couple down including this one. Just kind of shy of ordering online parts, shopping all day, cart full in EBAY, no trigger pulled yet, making sure it is the right stuff.

Well, #6 intake rocker arm has a divot worn into it, valve stem has pitting so off with the heads next after a leak down test, was running good just a rattle, all of the roller cam followers looked good, felt smooth but will replace them anyway. Oddly the valve with the worn rocker and pitting...

Thank you kindly for the input Slidin! I was initially thrown off by the individual coils and the coolant manifold between the heads thinking it was LS based. Will update on the findings as soon as I get things torn apart. Finding good parts to reassemble will be the chore.

Updated post a bit.

Here is the data tag. The heads look like old school big block once covers removed, gotta go rest my hernia from removing intake "by myself" ugh!

flitner69@gmail.com This is a factory built Panther tour boat, originally had a counter rotating belt box, has single now. So the need for the marine approved powerplant would have been necessary for the commercial sale with HIN and FL#s from Panther. As far as the marine status for the tour...

The Penn grade if I remember correctly is non detergent so the moisture will go to the highest point of the crankcase and gather. Detergent oil will mix the moisture, hence the clouding. Sounds like a higher temp thermostat is in order.

To start with, a couple months back, I removed broken belhousing bolts from the block, installed a rebuilt century unit, prop, all good, this is on a tour boat that ran quite a few tours after those repairs. After that a valvetrain tick or rattle developed, unsure of the hours, was carrying...

7862274204

What you are describing is an atmospheric mixture control unit, I have removed them and opened them about 1/4 turn at a time till the engine responds correctly, now mind you, this is your main jet as the nozzle is wide open with no "pill" in the end, so it could take some tinkering to get it...

Yes, do a thorough runout, shim accordingly

Just be sure that there is no interference, lower hub fits clean but snug and is seated fully into crankshaft flange, flex plate bolts new, blue locktite, no washers, torqued to 45#, any shims (washers) needed to fill gap between drive and flex plates must be equal thickness.

Yes

Another thing, I bet those valve covers have no baffles in them.

Looks like a PCV setup, there would be no vacuum to support this at a wide open throttle run, blow-by would be exiting the open breather, plug the vacuum port at carb, omit both rocker cover set up, go with what Andy suggested on both sides!