Thread: 350 sbc Year

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There are two main identifiers on the blocks for Gen I Chevy motors. One of them I could almost read from your photo if my eyes were better. Just above the passenger side top water pump bolt head, the block is stamped with what is called the suffix number. It is a combination of numbers and letters that tells the production plant, date of manufacture and the application of the motor....
http://www.crankshaftcoalition.com/w...partialVIN.jpg

Here's a good source for figuring out suffix codes....
SBC Engine Suffix Codes

The other main identifier is cast into the bellhousing flange of the block on the driver's side just ahead of where the bellhousing would bolt on and looks like this....
http://chevellestuff.net/qd/images/e...2406_block.jpg

The cylinder heads can be identified by removing the valve covers and reading the casting number in between the valves....
http://chevellestuff.net/qd/images/heads/3890462_03.jpg

Here's a good source for figuring out block, crankshaft, exhaust manifold, intake manifold and cylinder head casting numbers.....
Chevy Casting Number identification - Block casting numbers

And another source for blocks and heads....
http://www.mortec.com/castnum.htm

Also, I would STRONGLY suggest that you rid the motor of that rubber fuel line and replace it with a more substantial line BEFORE you have a fire.

And the motor needs more air filter element area so it can breathe properly, a 14" x 4" should be about right.


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well if it aint broke dont fix it ... you ever heard that ?

Originally Posted by HOSS429

well if it aint broke dont fix it ... you ever heard that ?

Yup. I do like the idea of a stainless steel fuel line or maybe a rubber fuel line encapsulated inside a stainless steel braided line .

Originally Posted by zippi

Yup. I do like the idea of a stainless steel fuel line or maybe a rubber fuel line encapsulated inside a stainless steel braided line .

zippi, if there was a way to get you to stop thinking about using rubber in the fuel system, I'd be all about it. The other problem with rubber is that the pump fuels we have to run nowadays has ethyl alcohol in it, which will disentegrate rubber on the inside of the hose, permitting these small pieces of rubber shrapnel to enter the fuel pump and carburetor bowl and clog up any damned thing they come in contact with. Stainless braided uses a teflon core.

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Originally Posted by techinspector1

zippi, if there was a way to get you to stop thinking about using rubber in the fuel system, I'd be all about it. The other problem with rubber is that the pump fuels we have to run nowadays has ethyl alcohol in it, which will disentegrate rubber on the inside of the hose, permitting these small pieces of rubber shrapnel to enter the fuel pump and carburetor bowl and clog up any damned thing they come in contact with. Stainless braided uses a teflon core.

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All stainless it is. I'll visit my local pep boys and see what they have and what fitting I'll need.