[75chev4x4]

Hey Guys I got a pretty good score today. Got 1 sbc complete carb to pan with accesories, 1 block 3970010 common block 4 bolt mains, crank and mains for that block and a set of heads for $40. The weird thing is on the complete block the casting is 3 70010 and I kid you not there is not number after the 3 just a space and i looked very hard and it does not look to be ground of its just not there. I cant get anything when I look it up. I can get a pic if you guys want. Anyone heard of this before?

[jevans]

try 38------- or 39-------

[75chev4x4]

yea I know, but there is nothing there its just a blank space only 6 numbers. On the other side it reads k54 which I looked up and it means it was made in ontario for the k and may 4th.

[sqzbox]

Originally Posted by jevans

try 38------- or 39-------

I do not have a listing for and have never seen a 3-"8"-70010 block casting #.

Besides, if it's a 4 bolt main I would assume it's a 3970010 and go for it.
S**T happens. GM is no exception to the rule of "murphy's law".

[jevans]

they have a book at auto that would help you to find it . if you go there look where the repair books are they have a book by the name of how to build a 350 . i look at it today i pick up a 350 4 b man for $150 cast number 38970014

[sqzbox]

Originally Posted by jevans

they have a book at auto that would help you to find it . if you go there look where the repair books are they have a book by the name of how to build a 350 . i look at it today i pick up a 350 4 b man for $150 cast number 38970014

1 too many #'s my man! I don't believe it. They do have a 3970014. but I don't see a 38970014 anywhere.

[75chev4x4]

gonna drop the pan here in a bit and I might have got two 4bolt mains for $40, but I checked the heads and they are the 624 castings not so great, but I will practice porting or something on them.

[75chev4x4]

[IMG]sbc1[/IMG] here is the pic hopefully this goes through.

[DoubleVision]

I`ve seen this on many blocks where one casting number is missing. Also seen them where the casting number was so poorly casted you can`t read it. One case I seen one that was miscasted, it had a 400 casting number but it turned out it was a 267. As long as I have the last 3 numbers I`m fine. But since there were many that used 4 inch bores, I check the crank numbers so I can find out what stroke crank I`m dealing with.

[75chev4x4]

So it could be a 327.

[75chev4x4]

dropped the pan and its two bolt mains, cant seem to get the crank to turn over so I put some pb blaster down the cylinders and give it some time. What do I need to do if the motor is seized as far as rebuilding it.

[75chev4x4]

Is there any reason why I couldn't use the crank and rods out of the 2 bolt main block and put them in the 4 bolt main block? They are both 350's.

[DoubleVision]

You can chunk the 350 rods and crank into another block with ease. That`s the beauty of Chevy interchangability.

[75chev4x4]

so what is your advice on getting this motor apart, the crank will not move and a lot of water came out when I drained the oil not coolant but water. I assume there it's some rust around thee pistons and in the bore. Shot some pb blaster and wd 40 down the plug holes. Is this crank and rods safe to use given the condition I described assuming it can be turned or polished. Thanks love this site good info and knowledgeable people.

[sqzbox]

Originally Posted by 75chev4x4

so what is your advice on getting this motor apart, the crank will not move and a lot of water came out when I drained the oil not coolant but water. I assume there it's some rust around thee pistons and in the bore. Shot some pb blaster and wd 40 down the plug holes. Is this crank and rods safe to use given the condition I described assuming it can be turned or polished. Thanks love this site good info and knowledgeable people.

Had that problem with a 402 that sat for years. Remove the heads, main caps, timing chain, and all the rod caps that you can reach. Give it a couple of days for the PB to work and start whacking away with a hammer and piece of wood on the piston tops. Eventually, it'll work loose.