Bought 3 engine blocks - little help please!
 

I just bought 3 engine blocks yesterday at an auction. I looked them up on Mortec.com and got the following.

Here's the numbers off of them:
3979014 - I think I read it wrong and that 9 should have been a 0.
3970010
3959532

The first is a 350(good) if that 9 is actually a 0.

The second says it could be a 302, 327, or a 350. How do I tell which it is?

The third is a 283. Can this be built to make decent HP? Is it the same block as the 327? I don't know anything about 283's.

Thanks a bunch!

Re: Bought 3 engine blocks - little help please!
 

If you'll post the stamped in numbers off the front pad on the block I can help you.

Re: Bought 3 engine blocks - little help please!
 

Hmm....didn't get those. I'll go see if I can get 'em real quick.

Re: Bought 3 engine blocks - little help please!
 

Okay, I must be blind. Where are the numbers you're looking for at? And are they raised or stamped?

Re: Bought 3 engine blocks - little help please!
 

They are stamped into a small pad just in front of the passenger side head. ( The opposite corner from the engine number at the back of the driver side head)

Re: Bought 3 engine blocks - little help please!
 

On the front side passenger side deck. Where the head would mount there will be an extra flat pad. On that pad would be a code. For instance the the block that could be a 350/302/327. You would see something like DZ1708. DZ is the code for 302 so that with the block # would mean a 302, other number are month/date etc. Our truck blocks I think have 3 letters all starting with T I think. Don't quote me its been a while since I have looked at that stuff. But thats a ballpark view

Re: Bought 3 engine blocks - little help please!
 

Ohh, okay. Thanks guys. I never realized there was a number there. I'll go look again.

I'll post back in 10 or 20 minutes.

Re: Bought 3 engine blocks - little help please!
 

Okay, the first one didn't have a number. It looks like the surface was machined and that took the number off. CRAP.

The second one looked like CE0A425. With 42 a little to the right.

The third looked like CE0A188. With 96 a little off to the right.

Re: Bought 3 engine blocks - little help please!
 

Those numbers don't seem right to me. Possibly partial VIN numbers or something. It should look something like this...F0328TKM.

Re: Bought 3 engine blocks - little help please!
 

Hope this helps....

These numbers are block casting numbers.
3970014 -1970-73 350ci LA built Camaro

3970010 -1969-79 350ci car, truck, Vette

3959532 - 1956-67 283ci


This is according to http://www.nastyz28.com/sbchevy/sblock.html#cdate

:)

Re: Bought 3 engine blocks - little help please!
 

How do you know the 3970010 is a 350 and not a 327?

I also read on some website that the CE meant it was a crate engine.

Re: Bought 3 engine blocks - little help please!
 

Measuring the bore diameter should tell you.

Re: Bought 3 engine blocks - little help please!
 

I have a block with the same casting number and it came from a wrecked '68 vette. Mine has the four bolt mains. As posted earlier check out this website. The page that opens gives the info.

http://www.nastyz28.com/sbchevy/sblock.html#cdate

George :)

Re: Bought 3 engine blocks - little help please!
 

Alright, thanks a lot everyone! This really helped out a lot. Now I just need to tear the bottom end out of both 350's and see if they're 2 or 4 bolt mains.

What is best to pour in cylinders to loosen up the pistons? I've heard either Coca Cola or diesel will work.

Re: Bought 3 engine blocks - little help please!
 

So did our trucks with that #3970010 come with 4 bolt mains?I just pulled one out of a 71 and it has 4 bolt mains on it.

Re: Bought 3 engine blocks - little help please!
 

DIDN'T ALL 67-72 TRUCKS COME WITH A 4 BOLT MAIN?? IT SEEMS THAT EVERYONE I'VE PULLED APART, OVER THE YEARS HAS BEEN A 4/BOLT. I JUST ASSUMED THAT THEY ALL CAME FROM THE FACTORY THAT WAY. :o JOHN

Re: Bought 3 engine blocks - little help please!
 

I'm pretty sure all the 67-72 truck 350's had 4 bolt mains.

Re: Bought 3 engine blocks - little help please!
 

I'm no motor head but i was under the assumption that the truck 350s from 67-72 were 4 bolts...

Re: Bought 3 engine blocks - little help please!
 

The 283 is a fun motor. Not much TQ but lots of power and high RPM's. The 283 I built 10 yrs ago was the funniest motor in a 68 Longbed and a 4 speed. If you want fun. build the 283.

Re: Bought 3 engine blocks - little help please!
 

Both are 4.00'' bore
Shane

Re: Bought 3 engine blocks - little help please!
 

PB BLASTER might also work.Also have heard that drilling out a spark plug adapting an air hose fitting to it threading it in and hooking up high pressure air to it will break a stuck engine loose.
Shane

Re: Bought 3 engine blocks - little help please!
 

Marvins "Mystery oil"

Re: Bought 3 engine blocks - little help please!
 

I THINK YOU MEAN "MARVELS MYSTERY OIL" JOHN

Re: Bought 3 engine blocks - little help please!
 

Yeah that stuff is a mechanical cure all:metal: :metal: :metal: :metal:
Shane