What Year SBC

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On the passenger side near the starter look for a casting number, late 60's and early 70's started with a "3"

This link is for older inline blocks:

http://www.inliners.org/casting/numbers.html


This link will help with the V's

http://www.thedirtforum.com/castings.htm

At any rate, get a rag and some degreaser and you will find it. They are below the head and usualy under the last two spark plugs on the passenger side. There are other factors besides casting numbers to determine years of course, head casting numbers, water pump orientation and etc.
 
just wanted to tell you on that year 350 the starter bolts are metric 14mm i was wondering why my 9/16 seemed a little loose, i went threw 2 starter nose cones before my parts guy figured it out and waranted them for me. they were made in mexico i believe and no amount of shims will make it work so ask for a metric starter when needed. just trying to save you a headache,
 
Scott R said:
Thats a good year, probably has 4 bolt mains.

327 never had 4 bolt mains, only 2.
 
my old 77 350 was an uncommon high nickle content block out of a corvette...I tried to kill that motor every way possible, and it never died (until the new owner decided to not follow my oil advice....idiot)
 
FRONT of passenger head, last group of letters should be three, four in the later blocks 85-UP i think.


Called the suffix code, whatever. This will tell you model yr, cu in, vehicle it was orignally in, carb a 4 or 2, transmission.

A number of early blocks shared numbers, and some truck and car blocks had the same block numbers, only why to tell easily is the suffix code.


Also without getting into the blocks, anytime big bearing 327 block comes up just remember 350 crank fits, and could be in there, or vise versa, LOL.
 
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