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04-29-2012, 11:18 PM
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#1 |
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Registered User
Join Date: Aug 2011
Location: manti utah
Posts: 95
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7.4 liter stamp on bottom of motor?
my motor has a 7.4 liter stamp and GM on the bottom of the motor, did this come on all stock 454s? also it has ce (counter exchange) on the prefix of the motor as well , the motor is in a 1978 k10 that had a 350 4 barrel im just trying to confirm it has a 454 in it for sure. Does the 7.4 liter stamp confirm the 454 id?
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04-29-2012, 11:19 PM
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#2 |
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Registered User
Join Date: Dec 2011
Location: Regina, SK, Canada
Posts: 622
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Re: 7.4 liter stamp on bottom of motor?
454 is 7.4 so I would assume that is what u got.
__________________
1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205 1971 GMC 3/4 Ton 4X4 |
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04-29-2012, 11:23 PM
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#3 |
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Registered User
Join Date: Aug 2011
Location: manti utah
Posts: 95
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Re: 7.4 liter stamp on bottom of motor?
i was assumeing as well, so i suppose we are right, probably a pretty stupid question lol
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04-30-2012, 07:19 AM
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#4 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,068
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Re: 7.4 liter stamp on bottom of motor?
7.4L stamped on the block indicates it was a 454 stock. It is also possible it's been bored or stroked & is larger now (461, 468, 496, etc...). At the minimum, it's a 454 block.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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04-30-2012, 10:46 AM
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#5 |
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Registered User
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
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Re: 7.4 liter stamp on bottom of motor?
GM did not always use the metric "7.4" designations for its 454 Engines, I think that started in the mid 80's....
Maybe Keith can clear this up. Desert |
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04-30-2012, 12:23 PM
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#6 |
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Registered User
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,189
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Re: 7.4 liter stamp on bottom of motor?
My 454 is a gm goodwrench reman which has a brass plate on the engine block which says something like "remanufactured for General Motors" and also has the amount bored over stamped on that plate. The story is the original owner blew the original 454 and got this engine from a GM dealer as a replacement motor.
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