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Old 02-13-2005, 02:19 PM
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SBC heads

Hello everyone. I have a quick question about heads. I checked the numbers on my heads and they are 3947041. These are listed to have either 1.94/1.50 or 2.02/1.60 valve size. My question is, How can I tell which set I have? What is the overall opinion on these heads? I have a chance to get a set of camelback heads (not sure of the #'s yet) and would like to know if it is worth the trouble. What is the difference between the camelback and mine, if mine do infact have the 2.02? They are on a 327. Any help would be great.

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Old 02-13-2005, 02:28 PM
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The camel hump heads are not worth the trouble at all. Vortec heads are the only stock heads I would ever consider using. Even then, I would still choose aftermarket.

I think the only difference in the heads may be whether or not they have accessory holes. The valve and combustion ccs may be different too so double check.
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Old 03-26-2006, 10:51 PM
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You will have to take the heads off and measure the valve size to know which ones you have. I would not use the camelback heads unless you are in a racing class that requires a factory casting, they are old technology and do not have a big enough flow difference to make it worth switching. The stock vortec heads do flow much better, but I have recently heard many people having problems with them cracking. hope this helps, Coby
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Old 03-27-2006, 11:39 AM
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Funny how double humps were top of the heep for 30yrs then Vortecs come out and now they are junk.BS!!!!!!
If they only need minimal work ala: valve lap and springs to match your cam then go for it,they will out flow any large chamber 76cc GM head(your heads).They only become"not worth it"when they need a total over haul as Vortecs will then be cheaper to obtian,for an evan bigger HP gain.
Also remeber w/ vortecs you need those horrid looking valve covers,and a new intake,and if your cam is over .450 lift(most performance cams)you have to get new springs and mill down the valve guides.
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Old 03-27-2006, 08:07 PM
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Quote:
Originally Posted by 78 monte
Funny how double humps were top of the heep for 30yrs then Vortecs come out and now they are junk.BS!!!!!!
If they only need minimal work ala: valve lap and springs to match your cam then go for it,they will out flow any large chamber 76cc GM head(your heads).They only become"not worth it"when they need a total over haul as Vortecs will then be cheaper to obtian,for an evan bigger HP gain.
Also remeber w/ vortecs you need those horrid looking valve covers,and a new intake,and if your cam is over .450 lift(most performance cams)you have to get new springs and mill down the valve guides.
I do agree. I stopped using double humps because it was cheaper to buy a newer head. The design is outdated but that doesn’t mean they don't make power. I know plenty of people that still run them.
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Old 03-27-2006, 08:38 PM
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Your 041 heads probably flow as well if not better than "camel humps" and they are guaranteed to have accessory holes.
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Old 03-27-2006, 10:34 PM
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the valve look like they are almost touching only looks as if a thumbnail will fit between the two. i love the double humps i wish i had a pair.
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