On my 6th Cobra and 4 were small blocks with 2 solid rollers and 2 big blocks both solid rollers. My current Cobra is KC 496 FE, Pond aluminum block, 10.7 compression, with solid roller, T&D shaft mounted rockers, single plane intake (cut down 1/2 inch), Quickfuel 850, Edlebrock stage 3 aluminum heads and aluminum flywheel. I love it as it knocks down tork at the low end an moves the tork & HP up in the higher band. Spins like a small block and idles at 900 rpm. It made 681 at the crank. It drives great and of course has the HP if you want it....
