2001 Volvo Penta 5.0 GL cracked block

[Scott Danforth]

Being a GL, it's carb'd. I would go 6.2 liter SBC for the replacement

The VP drive won't care, and the cost between a 5.0, 5.7, and 6.2 is less than $100

 

[Scott06]

Well I've watched a few videos and several boat owners had long term success with JB weld. If anyone here has tried it please add some tips.

You can try cleaning the crack and goobering it with jb, run it a few times and see if you get water in the oil. Some here have posted good results with jb on an external crack. If internal sooner or later water will fill the crank case.
if you are going to keep it as other have said get a 5.7 or 6.2 . I bought a project boat with cracked engine back in 2015, got a partial engine package from Michigan Motorz and have had over a decade of trouble free use. Was worth the money for a new engine especially compared to newer or new boat prices

 

[Lou C]

Back then the prices were so much better than now! In fact when I did my top engine overhaul in '17, I thought then, maybe I should just get a new long block. Shoulda! Now it's like double the price from then! But I liked the challenge of re-habbing the original engine so that's what I did.

 

[Scott06]

Back then the prices were so much better than now! In fact when I did my top engine overhaul in '17, I thought then, maybe I should just get a new long block. Shoulda! Now it's like double the price from then! But I liked the challenge of re-habbing the original engine so that's what I did.

It’s about $2000 -2500 more now For the base engine, $3600 more for the partial engine.

Back then the difference between a reman and new base engine was not enough to bother with the reman. I think the 5.0 and 5.7 new base engines were like $3400. I pd $5 k delivered for a 5.0 partial engine/ extended base- base engine plus intake,carb, fuel pump and lines, and ignition system plus new exhaust manifolds and risers Including shipping. They gave me $150 for the old 4.3 plus mercarb and cast AL oil pan with cracked block and pd shipping back.
seemed like a lot of money at the time but between the boat, engine, and new tires and breaks for the trailer I only had $10,800 into it. Now 11 summers of use later was a no brainer.

 

[Lou C]

Sure that works out to like less than a grand a year, a bargain!
I'm not sure that I would repower my old boat, it's still in good shape but it is 38 years old, with the Cobra drive system, that for me had been really good but no one but one guy around here will work on them. Lucky for me I have been able to fix the things that it needed (trim rams, water pump seal) myself. I do have a spare drive I could have rebuilt and also have a spare transom assembly as well.
Re-powering make sense because of the crazy high prices for both new and used boats, and much of what's used out there isn't in such great shape! I know this one from one end to the other....