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-   -   327 or 350 (http://www.hotrodders.com/forum/327-350-a-206506.html)

colton755 10-02-2011 08:04 PM

327 or 350
 
i have a sbc with the casting #s 3970010 with a 4 bolt main is there any way to tell if its 327 or 350

poncho62 10-02-2011 08:38 PM

Measure the stroke.......

Its a 350.....there were no 327s with 4 bolt mains........Of course, this fact has been disputed many times

Blazin72 10-02-2011 09:04 PM

There should be a suffix code stamped just in front of the passenger side cylinder head. Look that up and it'll tell you what you have. Or you can pull the oil pan off and check the casting number on the crank. Chances are very high that it's a 350 though. The 3970010 casting number was used throughout the 70s.

massey 12-13-2012 06:36 PM

Quote:

Originally Posted by poncho62 (Post 1475196)
Measure the stroke.......

Its a 350.....there were no 327s with 4 bolt mains........Of course, this fact has been disputed many times

actually in 1964 there was infact a 4 bolt main 327 suffix code T0221hv it was made specifically for the corvette 350 hp manual trans duel point ignition built in totawan ny

cobalt327 12-13-2012 07:17 PM

Quote:

Originally Posted by massey (Post 1622489)
actually in 1964 there was infact a 4 bolt main 327 suffix code T0221hv it was made specifically for the corvette 350 hp manual trans duel point ignition built in totawan ny

A 4-bolt 327 SMALL JOURNAL. Now, THAT'S a new one!!!

massey 12-13-2012 09:08 PM

L79 super h output 327 was a rally motor with 7 quart oil pan 4 bolt main look it up engine suffix is t0221hv

cobalt327 12-13-2012 09:43 PM

I don't need to look anything up to know there was no 4-bolt SJ production SBC engine. 327 or otherwise.


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