what is so special about camel hump heads compared to normal heads, what is physically different, and did they ever come stock on any vehicles, if so what.
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what is so special about camel hump heads compared to normal heads, what is physically different, and did they ever come stock on any vehicles, if so what.
Higher Compression, bigger Valves. In some Corvettes these heads are standard.
But the old heads are not comparable to modern Aluminum Heads available for older engines. The development of heads goes with big steps. If you are not on "original parts" go for Aluminum heads such as Air Flow Research or Edelbrock. A lot of companies producing these heads as a direct bolt on.
Kind regrads from Germany
The camel backs were good in their day, but Frank is right on the aluminums. Also, some of the new cast heads sell for a very reasonable price, and have better flow numbers then the old ones. If I had a set of camel backs, I'd be listing them on eBay for the numbers matching crowd to grab, then buy some good ones..!!!
Weren't these generally referred to as "fuel injection heads?" I remember for years if you looked at a guys sbc and he didn't have the distinquishing humps the car was considered low performance. But it you saw them it was cool.
Time has probably marched on though, as the others have said. Seems like aluminum heads have become the current buzz word for all engines, Chevy or Ford.
Don
As I recall, the camelhumps had larger ports and valves than standard. The 275, 300 and 350 horse 327 engines used the 1.94 intake valves, and the injection motors had 2.02 intakes, though the bigger difference was actually in the exhaust valves. It was the same casting, so you could cut the valve seats in a 1.94 head, and put the larger valves in, to end up with "fuelie heads.
Don, If I remember correctly these heads were first introduced in 1957 on the fuel injected Chevys and that is when they started to become known as "fulie heads"... I have oned numerous sets of these heads, and back when I was in high school I used to buy up as many sets of these I as could get my hands on as long as they were cheap... I still have a couple of sets of these in storage that I have had for many years... Only thing is like the others have already said, by the time you re-build them you have nearly as much invested as what some of the new aftermarket heads cost...
Dave
I think we need to distinguish between "fuelie" and " double hump"/"camel hump" heads.Quote:
Originally Posted by dangeroustoy
I worked in Chevrolet Parts, and built/street raced a lot of chevies in the '60s & '70s. While it's true the fuel injection came out on '57 models, as I recall, the "camel hump", or "double hump" heads first came out in '62 on all of the high performance 327s, including the injected Corvette motors. The larger intake ports did not match any earlier manifolds or injection units. They could be bolted together, but internally there was a big difference, making the manifold restrict air flow to the ports.
If you are strapped by rules to using a stock casting head, these work very well. But if you are just building a street machine, i would pick up some World products, Dart, Or even some of the Imported Pro Top Line heads. They are cheap and very good for the Money. Unless you want to spend the big money and go Aluminum.
I just traded mine for some bigger cc`s