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01-31-2012, 02:34 PM
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#1 |
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Registered User
Join Date: Mar 2010
Location: Germanton, NC
Posts: 34
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Engine Code Help
Trying to determine what year 350 I have in my 66. Here are the #'s I have:
K09 13 CMR K = Engine Plant St. Catherines, Ontario 0913 = Sep. 13 CMR = 1978 350 m/t L82 4sp 220HP 4 bolt main (Corvette-Z/28) or 1974 350 a/t 145hp (A body) Here is the # on the block: 3970010 = 69-79 350 Here is the Intake #: Intake: 346250 GM 305/350------- 76-82------- 4-Brl Quadrajet flange Now...how do I find out if I have the 74 or 78 350? Are there other #'s I can try to find and reference? Any help would be greatly appreciated. |
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01-31-2012, 02:59 PM
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#2 |
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Who Me?
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 4,067
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Re: Engine Code Help
There should be another set of numbers on the block. There is a flat tab near the passenger side of the water pump. I think those numbers are more helpful. They are stamped into the boss there, not cast.
That is how I found out I had a 305 instead of the 350 the PO told me it was.
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 Steve1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold) |
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01-31-2012, 03:02 PM
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#3 |
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Registered User
Join Date: Mar 2010
Location: Germanton, NC
Posts: 34
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Re: Engine Code Help
these are the only #'s I see there. K09 13 CMR
i will see if i can scratch away some paint to see if maybe they are just covered up. |
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01-31-2012, 03:04 PM
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#4 |
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Who Me?
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 4,067
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Re: Engine Code Help
I think thats the one.
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Steve1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold) |
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01-31-2012, 03:18 PM
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#5 |
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Who Me?
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 4,067
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Re: Engine Code Help
It looks like there are 3 options you have.
CMR 1974 350 tur hydro trans. - 145 2 A CMR 1978 350 m/t L82 4 220 4 Vette/Z-28 CMR 1980 305 auto trans. H LG4 155 4 full size Here is the link where I found that. http://www.nastyz28.com/gm-chevy-cod...s-suffix-3.php
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Steve1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold) |
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01-31-2012, 03:26 PM
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#6 |
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Registered User
Join Date: Oct 2009
Location: Tampa Bay
Posts: 1,549
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Re: Engine Code Help
Brad, you need the date code off the block. It is in the same place that you found the casting number only it's on the passenger side of the belhousing flange.
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CHEVY/GMC VIN DECODERS |
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01-31-2012, 03:23 PM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Germanton, NC
Posts: 34
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Re: Engine Code Help
yeah thats the link i referenced. i think i have it narrowed down to a 350 based on this engine stamp :3970010
im just stuck now wondering if i have the 145hp or the 220hp. |
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01-31-2012, 03:24 PM
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#8 |
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Who Me?
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 4,067
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Re: Engine Code Help
Have you had the pan off to see if its a 4 bolt or 2 bolt? I dont know if there is a way externally to know that.
__________________
Steve1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold) |
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01-31-2012, 03:26 PM
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#9 |
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Registered User
Join Date: Mar 2010
Location: Germanton, NC
Posts: 34
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Re: Engine Code Help
sure havent. seems like i read somewhere that 74 - 350's came in both 2 and 4 bolt patterns. hmmmmm
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01-31-2012, 03:27 PM
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#10 |
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Registered User
Join Date: Mar 2010
Location: Germanton, NC
Posts: 34
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Re: Engine Code Help
ok Bruceman.....ill try to clean off that area this afternoon and see if i can find some #'s there.
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