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08-11-2005, 09:21 PM
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#1 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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help! what engine is this?
my dad bought this suburban new in 1972. He has always considered it a 350 motor. but tonight, when I went to 3 different auto parts stores, the motor mount didn't match.
so for kicks and giggles, we went and got the motor mounts for a 327/305 and it was the right one! what is the best quickest way to find out what motor this is? it is out of the truck right now awaiting the installation of my new ZZ4, but I don't know where to start to find out what I've got. Thanks! |
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08-11-2005, 09:26 PM
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#2 |
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Account Suspended
Join Date: Mar 2001
Location: Virginia Beach, Va. U.S.A.
Posts: 15,320
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There is a casting number at the top rear of the engine (drivers side) right behing the intake, write that number down and post it, we'll tell ya what it is.
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08-11-2005, 09:30 PM
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#3 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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this number? 3970010
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08-11-2005, 09:30 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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it shouldn't matter as far as motor mounts go. The parts guys were probably giving you later model motor mounts.
Is there an engine option listing in the glove box? If it is original, then we should be able to figure it out real quick without getting our hands greasy. |
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08-11-2005, 09:35 PM
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#5 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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hands stay greasy!
I am assuming it is original... but you know how assume is spelled! I'd like to get original off motor just to make sure. thanks so much guys! |
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08-11-2005, 09:36 PM
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#6 |
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User #12137
 
Join Date: Apr 2004
Location: kingsport,upper east tenn
Posts: 11,598
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its a 69-79 350 , low power 185 hight power 370 , 2 or 4 bolt mains ,came in cars /trucks/ vettes
heres where i got the info from http://www.nastyz28.com/sbchevy/sblock.html#ecode |
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08-11-2005, 09:37 PM
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#7 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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3970010 could be a 350, 302(camaro) or 327 (69 truck) , have 3 of them. www.mortec.com
I agree w/ Andy, parts guys were getting later model mounts.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
Last edited by JIMs70GMC; 08-11-2005 at 09:40 PM. |
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08-11-2005, 09:45 PM
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#8 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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V1115TDJ
this is the number off the front of the block, in front of the passenger side head. |
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08-11-2005, 09:55 PM
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#9 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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strange, o'reillys AND Autozone have the wrong numbers in their computer AND in their books...
oh well, stranger things have happened. |
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08-11-2005, 09:56 PM
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#10 |
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Account Suspended
Join Date: May 2005
Location: East Texas
Posts: 545
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oh, and Thanks for your help! you guys are awesome!
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08-11-2005, 10:37 PM
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#11 | |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Quote:
 
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08-11-2005, 11:20 PM
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#12 | |
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Registered User
Join Date: Nov 2004
Location: Claysburg, Pa
Posts: 408
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Quote:
Don |
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08-11-2005, 11:41 PM
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#13 | |
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Weekend Warrior
Join Date: Oct 2004
Location: CT
Posts: 1,787
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Quote:
Probably the original 350 since the Front Pad matches for a '72 350cid truck motor and the casting #is a 350. only thing left to do is check the date code on the block itself.
__________________
-'07 GMC Sierra K2500HD -'66 C10 Suburban -'68/'71 K20 Service Bed Project -'69 Chevy C30 Mason Dump -'33Ford P/U 396ChevyPowered  
Last edited by arkracing; 08-11-2005 at 11:42 PM. |
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