[8litercobra]

Yes, P38s are Kaase's latest heads for Windsors. Valves are canted, so they look "different". My motor dynoed at 576hp, 5800rpm.....560+ from 5300 to 6600 rpm. 565 lb-ft at 4700 rpm, 560+ lb-ft from 4200 to 5200 rpm. I have a hydraulic lifter motor, 248/256 duration @0.050" lift, 0.636/0.620" lift at valve. tight 110 deg lobe separation. These heads move a lot of air, and will really punch up some numbers with a higher rpm solid lifter motor. I wanted a more streetable motor so kept it a little calmer.