401 Time capsule

I acquired a siezed 401 AMC for a few bucks and pulled the crank to check for grinds. Normally, I'm a chevy guy, and am used to grinds stamped on the bearings. I have a slight mystery with these, but it has been 4 years since I've had to crack open a motor. I need some help if any of you can interpret.

On the rod bearing -
Clevite 77
10 82 030
CB819P

Is this 10 or 30 under? I've never heard of 30 under....Does Clevite have a search function? I guess I'll check...

--------------------------
On the main
13311-HDA

Is this STD?

 

No clue about the bearing codes... but the 401 crank and rods are worth having. You can build a 304 or 360 stroker, a 325 or 385 at std bore.

You don't want them? I'll take them

 

There's a Clevite catalog here: http://mahleclevite.com/publications/EB-10-07.pdf

They also have a page where you can ask technical questions. http://mahleclevite.com/askclevite.asp

 

Excellent, this cleared up the rods bearings, they are stock.

Now for the main, 13311-HDA must not be Clevite.

 

You can make a 325 out of a 304 using that crank?

 

Yep. 325 cid at std bore, 336 cid at 60 over. The main journals are the same 304-360-401, but the 401 rod journals are different. You need 401 rods and custom pistons. Not cheap - maybe no cheaper than finding a core 401 - but it's been done.

 

In what way are is the engine seized? Depending on whats frozen up it might be a salvagable engine. I had a buddy in high school with a '69 Charger. He was given a "blown" 440, turned out the bearings seized. Tore it all down and built a very strong motor for a minimal outlay of cash.

 

Heck, if I had a 401 that was all frozen up, I'd figure out a way to get it running again. Even if I had to beat the stuck pistons out with a sledge hammer and have it bored.

I've been looking for a 401 for a year or so now. thought I had one and it was sold out from under me...........

 

This one had two blown cylinders, but I got lucky and found a second that just need bore and milled heads.