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12-01-2011, 02:55 PM
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#1 |
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Registered User
Join Date: Nov 2011
Location: San Angelo Texas
Posts: 15
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Engine block number question/Help
I need a lil help please. I got the engine block number and looked it up. It comes back to two different size engines. A 327 and a 350. So other than pulling a head off and measuring how can I tell what engine I actually have? Block #3970010.
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12-01-2011, 03:05 PM
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#2 | |
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Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: Engine block number question/Help
Quote:
Posted via Mobile Device
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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12-01-2011, 03:21 PM
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#3 |
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Roadtrip!
 
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,787
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Re: Engine block number question/Help
You need the suffix code off the front also, and a date code off the rear may help also.
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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12-01-2011, 03:21 PM
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#4 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: Engine block number question/Help
The only way to tell what you have (as born) is to get all three numbers, the casting number, date code, and stamping numbers from front pad. With that you can tell make, model, HP rating, trans type, and maybe other stuff like carb, emission equip, etc.
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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12-01-2011, 03:26 PM
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#5 |
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Florida Edition
 
Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,028
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Re: Engine block number question/Help
Yep, it's a 350. Here is a link
http://www.nastyz28.com/chevy-engine-code-stampings.php If you have the numbers off of the front passanger side of the block you can decode it some more, along with the head casting numbers, intake, etc. It's all on nastyZ28's site.
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70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394 |
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12-01-2011, 03:27 PM
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#6 |
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Florida Edition
Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,028
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Re: Engine block number question/Help
Man...you guys are fast typers!
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70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394 |
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12-01-2011, 03:27 PM
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#7 |
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Eat, Sleep, Drive a Chevy
Join Date: Apr 2010
Location: the town of the cow, Texas
Posts: 1,152
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Re: Engine block number question/Help
look at the locations in the pic. IIRC the 327 and the 350 are the same bore size the only diffrence is stroke (crankshaft) so pulling head would not tell you anything more. Both great engines by the way
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Trey Silence may be Golden, but Duct Tape is Silver! 72 Short Step 57 "big window" short step |
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12-01-2011, 03:46 PM
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#8 |
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Registered User
Join Date: Nov 2011
Location: San Angelo Texas
Posts: 15
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Re: Engine block number question/Help
Thanks guys. Everyone here is such a big help...
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12-01-2011, 08:15 PM
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#9 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: Engine block number question/Help
Welcome to the board by the way.
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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