Indy Cylinder Head is currently selling NEW gen V/gen VI rectangular port castings machined for 7/16 studs with your choice of 2.19 or 2.25 intake valves with 1.88 exhaust valves with hyd roller springs (150 lbs seat) and Manley studs with guide plates all assembled for $1000.00

Good deal. Use Comp Cams 290HR roller cam and you'll have a budget friendly 525-550 HP AND over 525 ft lbs of torque.

Happy motoring