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09-02-2006, 10:52 AM
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#1 |
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Registered User
Join Date: Aug 2006
Location: Panama City, FL
Posts: 34
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Double Hump Heads??????
I just recently bought a 71 C 10 longbed with a 350 we belive that this is the original motor (coads out to be a 70). The question is the heads are stamped 771 and there are 2 humps on the end of the head. Are these the desired double hump heads? I will try to post pic later.
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09-02-2006, 12:21 PM
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#2 |
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Senior Member
Join Date: Feb 2005
Location: Maynardville, Tn
Posts: 3,030
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Re: Double Hump Heads??????
I couldn't find anything on the Moretech site ending in 771. What is the complete casting #?
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SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet |
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09-02-2006, 06:19 PM
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#3 | |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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Re: Double Hump Heads??????
borrowed this info from the www
Quote:
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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09-02-2006, 11:25 PM
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#4 |
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Registered User
Join Date: Aug 2006
Location: Panama City, FL
Posts: 34
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Re: Double Hump Heads??????
3927186
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09-03-2006, 01:33 AM
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#5 | |
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White 82
Join Date: Feb 2004
Location: Eustace, Texas
Posts: 100
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Re: Double Hump Heads??????
Quote:
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1966 GTO 455 e-heads, 1982 Chevy k10 4'' lift 33’' tires, 2008 Pontiac g6 v6 |
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09-02-2006, 11:30 PM
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#6 |
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Msgt USAF Ret
  
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,717
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Re: Double Hump Heads??????
This will cover most of the sbc heads including the double humps.
http://www.jimsperformance.com/headchart.html
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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09-03-2006, 12:40 AM
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#7 |
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67-72 parts finder
Join Date: Aug 2006
Location: southeast mo
Posts: 788
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Re: Double Hump Heads??????
i like to use mortec.com
__________________
  1969 chevy shortstep 2wd (under construction)1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb) |
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09-03-2006, 08:03 AM
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#8 |
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Registered User
Join Date: Aug 2006
Location: Panama City, FL
Posts: 34
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Re: Double Hump Heads??????
Thanks guys you have helped a lot, the next questiont is are theses as good as everyone says they are?
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09-03-2006, 08:22 AM
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#9 | |
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Registered User
Join Date: Sep 2006
Location: GA
Posts: 2
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Re: Double Hump Heads??????
Quote:
They earned their reputation as being good back in the days when there was little aftermarket competition for performance cylinder heads and before the the tens of thousands of man hours of research on air flow, combustion chamber design, etc. that have occured since the late 1960s. A pair of cast iron Vortec heads is superior is every respect, along with a boatload of other modern heads in cast iron or aluminum. However, if these heads have been rebuilt and are in good as new condition and you don't want to spend the money then go ahead and use them, but don't set your expectations too high. |
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09-03-2006, 08:25 AM
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#10 |
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Active Member
Join Date: Jun 2002
Location: L.A. Lower Alabama
Posts: 453
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Re: Double Hump Heads??????
For their day best you could get. There better 'stock' heads made today such as the vortec heads which can be had for a decent price new. Other than a resto I couldn't justify putting alot of money into them.
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1969 C10 350 3spd 1995 GMC 3500 XC 350 dually When Thomas Edison worked late into the night on the electric light, he had to do it by gas lamp or candle. I'm sure it made the work seem that much more urgent. George Carlin |
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