327 or 350

[68badmaro]

Hey there everyone! New member here to the group. I have a question about my recent "68" purchase that came with a SBC and 4 speed Sag. I was told by the seller the block installed is a 350 and it is the original block equipped on this car. Not sure how true this is. No heads on the engine just the short block. Casting numbers are..

#F1014HF  (pass side pad stamping)
#3858174 (Rear left side casting)

Online decoding charts give me both, a 327 and 350 for F1014HF stamping and 3858174 casting there is blogs about this being a mystery block possibly a 327 or 350 out of some corvettes. Is there any other indications on the block I can use to decipher? I'd like to keep this block and rebuild it if possible especially if its matching numbers. Any help is greatly appreciated.

[bcmiller]

Casting number and HF application code indicate a 327. Either from a 65 or 66 full size Chevrolet.

[BULLITT65]

Welcome to the site. Post some pics of your new purchase (please)
 

[maroman]

I think your car would have to be an SS to have a 350.

[68badmaro]

Thanks for the info. Here are some pics of the first day I brought it home.

[68badmaro]

So that sums it up better. I suspected the block was not matching for 68. Could the block possibly have came out a Corvette?

[BULLITT65]

Great pics. What are your plans for it? Stock colors per the trim tag, or a different color in mind? Wheels?

[68badmaro]

Thank you. Stock Tag color is Teal Blue with Black standard interior, 4 speed trans and V8. I think I will go either Teal blue or custom Black with the louver hood and RS grille. Havent decided what engine most likely will start with a Gen1 small block and with a M20 Wide Ratio. Later will look into going LS. Already has a 12 bolt posi not sure if original but I am definitely content with keeping that! On the wheels I love the gunmetal American Racing Torque thrust wheels on 15 BFG's...Just never get old for me. Im more of an old skool guy

[bcmiller]

So that sums it up better. I suspected the block was not matching for 68. Could the block possibly have came out a Corvette?

No the block is from a full size car like an Impala.

What is code stamped on the front edge of the passenger side axle tube? And how does it compare date-wise to the build week on the trim tag on the firewall?

[BULLITT65]

If it has a factory 12 bolt, (dates line up), would that indicate it may have been a factory SS?
Could you get a LM1 or plain jane car with a 12 bolt, and not have an SS, Z, Dealer super car?

(Sorry 68 guys, I am not well versed)

[bcmiller]

It's OK Austin.  Yes, an original 12 bolt in a 68 is a good sign of an SS or Z28.  The L30/M20 combo also got a 12 bolt. There wasn't an LM1 option in 68. 

In 67, there were even some 6 cylinder cars that got 12 bolts.  They were installed when the 10 bolt ratio was not available or a heavy duty axle was ordered.  I personally know of 2 cars that were that way.

Fixed typo

[dale_z28]

If it's a 327, slap a 283 crank in it and wind 'er up!

[jdv69z]

But don't forget to change pistons as well! 

[bcmiller]

The old 301 was a 283 bored out to 4 inches.

There is more to making a legitimate 302 than a 327 block and a 283 crank. A properly build 327 will rev almost as good as a 283 or 302. And if both (327 and 302) have similar compression, same cam, similar ported heads, and good rods - which do you think would be faster?

[cook_dw]

No replacement for displacement.