Need some help with engine replacement
#21
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Join Date: Aug 2012
Location: Collierville, TN and Pickwick Lake
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Really? Never knew that, thought the whole rotating assembly was cast. Good info! The powdered metal sbc rods were very good in the lt1's when they came out. I have seen problems when engines like the 7.3 powerstroke went to a powdered metal from forged, but it was more of a weaker design than a poor manufacturing process.
#23
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back to the orig discussion. what the orig poster needs is a whole boat. there are lots of neglected boats out there that got very little use and the sun burnt the interiors and either the engine froze and cracked or the drive was stolen. and boat is for sale cheap and sometimes free, though rarely with bravos. now you have all the parts...sort of. now strip the boat. engine, drive transom assy. then take the dash, shifter, steering. now you know how it all goes back together. and you have most of the little stuff. automotive block will work if it has marine cam, right compression ratio, right freeze plugs, etc. the engine in some ways is the easiest part to come up with. a whole running boat with beat interior this time of year would be the best buy. and lots of people are selling and NOBODY ELSE is buying...is it possible to make it into a jet boat? if you have a sawzall and a buncha fiberglass mat and resin, then yes it is possible. it is a very bad idea though...
Last edited by dereknkathy; 09-23-2014 at 06:44 PM.
#25
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Why not a crate 502 from jegs? My boat has a CAR motor in it and I have no troubles other than I keep ripping the drive all up! I think the 502 would be a good fit? Buying a whole boat mite not be a bad idea. I have been thinking of that to get a bravo setup for my boat.
#27
First, have you verified that the hull is solid and not full of rot? Do you know the history of the boat before you bought it? Was it stored inside in a dry location, or out in the elements? Was it left in the water for weeks at a time? A lot of boats of that era, especially the smaller ones, had some corners cut on the hull construction that could make it very easy for water to find its way into the wood coring inside the transom, stringers, bulkheads, etc. This is not always obvious just by looking at it. Something as simple as a hole drilled into a stringer that is not properly sealed can be an avenue for water to wick into the end grain of the wood coring if it was exposed to water for a long time. Things like leaving a boat outside in the rain with no cover and the bilge plug still in can spell the death of the hull. People think "hey, it's a boat - it's meant to get wet". Well, I'm here to tell you, ain't necessarily so. Before you spend a lot of time and money on this project, find a marine surveyor to come out and check the hull with a moisture meter to make sure everything is solid. It should be relatively easy with the engine out of the way. We would hate to read about you busting your behind on this project, only to find out that your stringers are cracking because the coring is all rotted out.
Other than that, what others have said about finding a complete take-out engine assembly and B1 is good advice. Piecing all of this together is going to be much more expensive and time consuming. good luck.
Other than that, what others have said about finding a complete take-out engine assembly and B1 is good advice. Piecing all of this together is going to be much more expensive and time consuming. good luck.
#30
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Location: Northern Indiana
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Yea, and I can see how . If ive replaced car engines and streetbike engines, I don't see a boat engine being much more difficult. Im on here as also on the hull truth and screamandfly. Im reading as much as I can and just trying to find out Terms and such, as I know I need to be doing a lot of research and where else to learn then from others that have done it before?