ok, I was joking about gluing the cam back together, but you MUST get a reverse rotation cam, like this one... Chevy 350 Mercruiser Marine Reverse Rotation Cam Kit Lifters Camshaft Lifter | eBay the R on your serial number, I am pretty sure, means reverse rotation. I am not crazy about Jasper, but they build more engines than anybody, so they get more failures than anybody. 100% of the failures generate a complaint. nobody ever comes on and praises Jasper when they don't break. they bore everything to .040. they cut valve seats in too deep. maybe if you wanna come down to S. Jersey sometime we can clean your heads up. I gotta check if I have the right seat stones for your valve sizes. I probably do. bought my antique valve grinder and seat cutter for my big block stuff. 300 bucks, paid for itself in 1 pair of heads... yeah, I still have some 350 heads. i'll play around a little tomorrow and make sure I have stones and pilots and that they do the trick.

Derek,

Can u assemble engine if i bring u block and all necessary parts? Give me your contact info so we can talk about price.

Wow it was as bad as I thought originally. I have to go eat some tums now. Sorry for your loss, i hope things go good . If engine is that bad what about the boat. Maybe keeping an insurance claim in back of your mind would be good thing. That is probably one the worst ones I've seen.

I have installed dozens of Jasper engines in cars, FedEx trucks and boats. I even put one in my mothers boat a couple of years ago. Have never had a complaint or a warranty claim. I believe they are probably the best stock rebuilder out there.

JFC! Sorry to see that. What's the collective guess as to what broke first?

did you cut the rod,s off of the crank with a torch?

ok, there are 350 short blocks on ebay 670 to 1k. at 1k he can get with correct reverse cam. these are bulk rebuilders in texas and tenn. Mabbco in tyler tex,. wholesale engines in dallas, and cyl head and engine rebuilding in athens Tenn. these are 90 day war, which means NO warranty. and 150 to 250 shipping at a guess. anybody have any feedback on them? or would he be better going to rebuilders around him for a little bit more, some say 3 yr 100k warranty, but as soon as you say boat they say NO warranty, but he can look the guy who built it in the eye and drive home with it. of course I just gave away (200 bucks) a good 350 I stared at in my garage for years a couple months ago. anybody got a good 350 gathering dust in the garage close enough to Brooklyn? or know a new York area builder he can trust?

then there is radley chebby dealer. NEW GM goodwrench engine 1674 free shipping. then he has to buy cam kit to reverse it. so roughly 2k for new from GM.

this is 1-piece seal, correct?

I bet you did not run aground. I bet this motor just popped and it felt so bad you thought you ran aground. Because digging your prop into a little bit of mud is not going to make two connecting rods snap and break the camshaft. Motors usually kill themselves. They don't need a lot of outside help.