Guy I know stealth head setup but with more cubes and it made 610....

Early 70's 440 block (unsure of year) prepped for overhaul/rebuild.
440 source 543 balanced stroker kit:
(.055 over) 4.375" bore 4.500" stroke
Forged flat-top 2618 T-6 aluminum billet pistons.
4340 forged steel crankshaft
4340 steel rods, full floating .990" pins
Clevite bearings
Childs & Albert ductile iron plasma-moly file fit rings
440 source Stealth aluminum heads with full port job; 2.14/1.81" valves, 84 cc chamber size.
Comp Cams (#953-16) valve springs Open: 456 @ 1.250"
Spring Rate: 473 in/lb
Coil Bind: 1.085
Cam Motion custom ground hydraulic roller cam:
Lift: .540/.527
Duration: 240/245 @ .050
Lobe separation 110.2
Comp Cams: push rods, 10 degree super locks & retainers.
Compression at 11.04:1
Hughes Engines 1.5 ratio cnc'd aluminum roller rockers, cryogenically treated.
Hyd roller lifters.
Milodon External oiling system with Melling HV oil pump.
440 Source 7 qt. aluminum oil pan
440 Source windage tray
Carter HV mech fuel pump.
SFI certified Chrome fluid damper
Billet double roller timing chain
Edelbrock Performer RPM aluminum intake manifold
Pro Systems 1000 cfm carburetor, mechanical secondaries.
Doug's (#D452) ceramic coated full headers. 2" primaries, 3.5" collectors.


Well I took the 543 stroker to the engine dyno for a break-in and tune. It was awesome and I am still grinning! The results were quite good. I have about 8 pages of test results, but the bottom line is: 610 horsepower @ 5400 RPM with 651 ft/lbs of hole stompin' torque!