We take a salvaged, chevy 350ci small block, bore it out to a 383ci and rebuild a monster. ... Like the camel hump heads, the Vortecs also maintain 1.94/1.50-inch valves in 64cc ...

hotrod.com/techarticles/383ci_chevy_small_block_build/ind...

... or "camel hump" heads because of their distinctive casting marks on ... larger than the Vortec head that specs out at 1.74 sq.in. Casting Material Port Vol. Valve Size Chamber ...

cartechbooks.com/vstore/showdetl.cfm?...&DID=6&chapter=11483

The original GM Vortec heads are priced very well too, $600 a pair assembled. ... vortec truck heads, that make killer tq and the large port vortec ...

www.chevytalk.org/fusionbb/showtopic.php?tid/226509

I think you're far better off with those 906 Vortec heads. ... the camel hump heads with 1.94 valve would be best for normal street driving vs the 2.02 ...

www.chevytalk.org/fusionbb/showtopic.php?tid/180000

Small block Chevy heads have been manufactured since 1955, and have been used in high performance applications as soon as the first one rolled off the

onedirt.com/forum/guide-vortec-vs-oe-small-block-chevy-heads...