Distributor Gear Failure on 454 Mag EFI
#121
Registered
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.
Last edited by dereknkathy; 10-15-2017 at 07:15 PM.
#123
Attachment 571498
Total lost. Broken camshaft, pistons, block too also damaged crankshaft....
I need a new engine. I will post serial number, maybe someone knows where i can find same one.
Total lost. Broken camshaft, pistons, block too also damaged crankshaft....
I need a new engine. I will post serial number, maybe someone knows where i can find same one.
Last edited by veloc410; 09-21-2018 at 11:00 AM.
#127
Registered
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?
#130
Registered
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.