Are you sure that's not 3932441. The 3932441 heads are 1969 350/250,255 hp heads (Pass, Chevelle, Camaro,Chevy II) 1.94 intake/ 1.50 exhaust with 76.26 cc comb. chamber. This head was also used in 1970. The casting symbol is a rectagular shape. These heads are very sinilar to the camel hump heads used on the 69 300 hp vettes.

 

You are right it is a 9 not a 8. Are these a good set worth rebuilding?

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70 1/2 RS Camaro

 

I'm not that familiar with small block chevys ( I'm into bb) but from what i've read these seem to be basically the same castings as the famed camel or fuelie heads except for a slight cumbustion chamber reconfiguration. I guess if you match them up with the right set of piston you could have a good combo. Basically, the same heads with 2.02/1.60 valves were used on the 69"" 300, 360, 370, 350 ci inch small blocks in 69.

 

Thanks for the info.

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70 1/2 RS Camaro

 

Yeah, basically the same as a # 186 double hump head. They came out on 350-250hp engines, for 1970. They are all 1.94/1.5 heads, unless someone added larger valves.

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Many Used Parts for Chevelles, and Camaros- Just ask!