Technical Conflicting information SBC block identification!

Hey, I'm not insisting anything. Just asking. Now I know. Thanks

 

In the days before you could buy a kit, the Chevy 383 was a turned-down 400 crank, in a 350 block.

So yes, you could have a 400 crank in a 350 block. If it is not vibrating (shaking) then it is balanced.

Nowadays, you can buy a 383 kit, with a complete rotating ***embly, by just specifying your bore diameter.

 

SIR, this is incorrect. Firstly you pull the distributor. Then pour the oil in without using a funnel so that about half of it runs down the bell housing. Next reinstall the distributor while making sure that it's 180 out so you can make a "SBC won't start thread" later. I also will add that you do not properly engage the oil pump drive so that once the engine starts after correcting the timing you can start another thread asking if the pressure gauge is defective. Duh.

 

I though we only did that at your house.

 

I would like to be a trendsetter for once and be able to drop these knowledge nuggets on the public at large.

 

You left out the part that he now also has a leaking rear main seal.

 

He did not want to rub it all the way in.

Nick is a kind guy.

 

If you don't want to remove the oil pan, how about snaking one of those miniature cameras through the drain plug to see if it's a four or two bolt main engine?

 

For trivia, Rust is correct DZ, 1969, Myrick is correct MO, 1967 -68, Z-28, and a '67 Z with Caly legal air-pump with MP stamp. According to my Z-28 appraiser, he also mentioned the "2388 " block was a go to for fakes, with a good date code, but supposedly some legit ones also!

 

Ok all you "only z28 had the vin by the oil filter" players:

BZZZZTTT! Wrong answer. Thanks for playing. ALL CA#@#&s had the vin by the filter. From a lowly 327 glide 2bbl to a 396/375 to a 307 2bbl. And of course the Z. Most Vettes had it on the front pad as did other cars. Facts.

 

I was thinking that the font on the stamping looked wrong.

Makes you wonder if somone ground the original number off and stamped
Checking the "'Lime book" CI does not show up as a suffix code. That is the most complete list that I know of. THE COMPLETE (camaros.org)

 

In the majority of GM codes the use if the letter 'I' is avoided, most notably in date codes. H is August, J is September. Makes sense it would be avoided elsewhere in other codes. I can't swear that's a hard fast rule but it seems so.

 

I have no wonder about it, the block has been decked and stamped with a non-original type number. Look at enough of them, it's really obvious that this one is not original.

 

The only year they stamped the VIN next to the oil filter was 1969. Which aligns with the 9 in the VIN. But as Squirrel has said, the restamped engine code on the front pad makes everything else suspect. The casting date is for an early 69 block. Any thoughts of it being a 302 are extremely doubtful. The correct code for a Z/28 302 engine would be either DZ or if it was a warranty replacement it would be CE

 

not really, the only thing that's not original is the stamp on the deck. The partial VIN, casting date, and casting number all appear to be original, to an early model year 1969 big car ***embled in LA.

 

One example, guesses?
Not mine.

 

neat, 66 Nova 350 hp 327, with a partial VIN and the suffix ZI. Engine ***embled in Flint on March 30th, car ***embled in Norwood.

 

I said it wasn't a hard fast rule, and I was too lazy to get my code book outta the ba*****t. Still, on part date codes I'm finding J is Sept, no I used.

I too am in the 69 327 camp. It's an LO. Oh, that means "Low Output"...

 

It's Norwood...same plant that would later build Camaros..

 

I wanna get in here, that's the same casting that was in my wagon. In my case it was a 300hp 350. Had the original 041 heads on it also with 68 date code. I still felt special though, up until it lost oil pressure

 

A picture of the flywheel/ crank flange will tell if cast , forged and if 302 , 327 or 350 .
Sorry , a little late to the party

 

I have a 302 crank in my 283. Yup.. its still a 283, with a 302 crank. And I have the Camaro oil pan, with windage tray on it, ..but its still a 283. Search on Mortec.

https://www.mortec.com/

 

Yep, in Van Nuys...(sp)..

 

For the '69 model year only.....

 

That only applies to starters and alternators. I is used regularly in casting dates of cast iron parts. Perhaps the distinction is that in the case of starters and alternators..the dates are stamped in? Who knows why...but its electrical stuff that doesn't use I for September...

 

Makes sense, the majority of **** I went thru recently was more electric, distributors, parts groups, blah blah...

 

Sure looks like a Chevy II block.

 

Good Eye....it is.

 

Teach me the difference. I've always seen rebuild kits and parts listed as "except Chevy II"

 

Lloyd
As far as engine related, the single biggest difference would be the front sump oil pan, oil pump, pump pickup and distributor drive shaft, all due to the need for the tight packaging required for the 64-67 Chevy II 283/327's and the layout of the front suspension, the belhousing is special also, has the 7 o'clock clutch fork exit as compared to the typical 9 o'clock exit.
The rams horn exhaust manifold flange castings are different also.
This should actually say mid sixties.

The clutch linkage is also Chevy II specific.