just got finished with my new 408w, here are the specs, new motorsports sportsman block machined for 408 cu. in, steel forged crank, eagle h-beam rods, alum pistons yeilding 9.8.1 comp ratio, comp cam hy roller 288-293-236-242-555-576-108, 1.6 rollers, 7qt milodon
oil pan, roush 200 heads ported to flow 250@.500 lift and 180 on .ex,263 and 186 @.600 lift, 67.5 chambers, 206 int port c.c. vic jr manifold, bigs 750HP DP, 1\3\4 supercomps, msd billet dist, all balanced and ready to rock, i hope for at least 450 hp and good torque, this motor will be street driven, little strip, cast iron heads for nj weather is a must, or i would have gone with alum heads either AFR 185 or 205's, but i was talked out of using alum heads. thanks.