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Main Bearing assembly

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Brock69

Member
As mentioned in a previous topic I threw out the wrong Bearing caps

The engine rebuilder that I am using tells me that my block is garbage and it cannot be machined to accommodate any other Main Caps.

All comments are appreciated.
 
I believe the block can be saved by a competent machine shop, but is it worth it? If I remember right, they cut the non-fitting caps and then align bore the block with the caps torqued down. Somebody else might have more info about this. How much would a new block cost? I think small blocks are still plentiful and cost around 200 bucks. Big blocks are more scarce and expensive but still might be a better way to go than machining the old one, depending. Of course, a really good shop would give you a better block and caps than you had before, but you might not know the difference between that and just getting another block from a junkyard. If you're looking for a small block, I have a spare 318 block and a spare 360 block. I would give them up cheap but you could no doubt do better locally than paying the shipping from Alaska.
 
..."The engine rebuilder that I am using tells me that my block is garbage"

Listen to him! And buy a rebuilt long block from a reputable rebuilder. You'll be WAY ahead in the long run.

Jeff
 
"The engine rebuilder that I am using tells me that my block is garbage and it cannot be machined to accommodate any other Main Caps."

.... or is it he can't / won't do it?

Gee, my 440 in my '69 cuda has another blocks main caps in it. Has to be 9 -10 years by now. Oil pressure 40 hot at idle with 20w50. Guess mine is garbage too!


If you got the bucks go for the long block as suggested and be done with it. Make sure the supplier is reputable. Just hope you don't end up like this situation..........
http://www.marineengine.com/boat-forum/showthread.php?t=382178
 
You're missing the point, Dave. A rebuilt long block includes a bore job, new pistons, cam, lifters, timing chain, etc. And, oh yes, a ground crank with new bearings. Being a Mopar marine engine, they're cheaper in most cases than Chevies (for some reason), so why would anyone repair a worn motor for what might be nearly the same cost?

I've rebuilt engines of all types for half a century, but when my 360 blew I bought a long block and have never regretted it.

Jeff
 
Thanks for your reply

I have purchased a new (used) block with new pistions - rings - main Caps -oil seals - brass plugs and assembled for $ 900.00.

It is a shame to toss the block as it is clean and in good condition.

Thanks
 
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