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Old 05-04-2009, 03:42 PM
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Need help with Suffix Code SBC 350

Here are the numbers from the front pad
195209370 and F0219CKL

Its an 370010 block if that helps & the Heads appear to be 3886336
All I can find by checking mortec are 3986336 heads.
I have heard that it could be either a 71 truck or possibly a 71-72 330hp lt1


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Old 05-04-2009, 04:00 PM
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CKL 1973 350 tur hydro, Calif - F A B
CKL 1975 262 - Nova/Chevelle/Monte
Since you already know it`s a 350, apparently it came out of a F A or B body. The date code will be on the rear of the block on the bellhousing. It will look like this example: C 15 3 which breaks down into:
C the month, C is March, A is Jan, B is Feb. Etc.
15 is the day, the 15th of march.
3 The year 1973. if the date code varies by many years than the info given in the suffix code it could be a suffix that hasn`t been recorded yet.
While it`s true the 336 castings were used only in 71, you`d have to be sure the heads came factory on the block.
F indicates Flint Engine Plant.
02 indicates the month of Feb.
19 Is the 19th of that month.
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Old 05-04-2009, 04:35 PM
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3970010 is definitely 350; the 73 one;
so we wont need to know the date casting code on the back

the heads have apparenty been put on at some point in its life. and not correct/original if they are 71 ones.

good luck
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