What's the collective opinion on value of a pair of C302B heads and 9.2" intake manifold (I think its a B351, but no markings)?

I measured the ports at one point and want to say the intake was mildly ported (220cc) and exhaust was stock, but I can verify.


Thanks,

Julian

Original Post

Many street owners don't realize that according to the SVO catalogue pages, C302(B) SVO high-port cylinder heads were purposely made with thick port walls so custom porting could be more easily done. Thus many of these heads owned by racers now have different port sizes. The upside was if you have a set of unported C302(B) heads, air/fuel velocity tends to be higher and they sometimes deliver better low-end torque but fall off earlier than- for instance, the big-port SVO A-3s.

Hard to say without the details but I'd say anywhere from worthless junk to $2500 depending upon condition, porting, and valve train components. I'd say $1000-$1500 for a pair with unknown valve train and porting but otherwise good condition. To me good condition means they haven't been excessively decked, the combustion chambers aren't altered or been blown up, and the ports aren't all hogged out. On the flip side, if they have been nicely worked, with good valve train and flow data, that could push them to the upper end of the range. Virgin heads are also in the category.

Intakes in decent shape $400-$750.

I have a number of C302B and BF301 heads. They are great performers and in the hands of the right person every bit as good as about anything available today, at least for street car enthusiast. Good for Panteras but you can't run them on shock tower cars because the exhaust ports exit too high.

 

Best,

Kelly

Kelly,

Thanks for the input, when I get a few spare moments at home rather on the road, I'll remeasure port volumes and post some photos.

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