Are these good heads?? Supposedly 1.94 fuelers......

[y5mgisi]

The guy i got them from said they were 1.94 fuelers and they were in good shape so i picked em up. Any who the numbers are 8998993 and it has GM38 and the shape on the front of the head looks like this

So are these actually good heads or did i get screwed? /forums/images/graemlins/ears.gif

 

[sled_dog]

think you read the numbers wrong. there is no 8998993 as far as I can find, there however IS a 3998993 and they are [ QUOTE ]
3998993....72-73...307/350......75cc chambers


[/ QUOTE ] Sounds like your basic heads to me, probably not junk but I think you got screwed as far as buying what you thought you were getting.

 

[Thunder]

Definatly not fuelie heads. All fulie heads have a double hump casting.Id numbers end in the following 3 digits 291, 461, 461X, 462 for the large hump(Early) heads.186, 492 small hump later model heads.

Look like plain old early 70s and up large 76cc chamber 350 heads to me. They can have 1.94/1.50 valves. You can also find them with 2.02s

 

[Rolled]

I have two books that say different things about those heads.

Book 1
3998993 = 1968-1976 350 1.71/1.5 truck

Book 2
3998993 = 1971 to present 350/400 1.94/1.5

 

[beater_k20]

they make good doorstops.

 

[4X4HIGH]

I can tell you those heads are "hecho in mexico" it should say that somewhere on them around the valve spring area. They are nothing special, just 1.94"/1.5" 76cc chambers but early thick casting heads. These were commonly used on GM's target master engines made in mexico.