LS1/LS6 package, everything new and in the boxes – LS6 aluminum CNC Ported Cathedral Ports, 2.02/1.59 valves, .650 springs, intake 243CC – Exhaust 95CC – Combustion Chamber 66-68CC Beyond Z06 numbers and asking for a power adder, supercharger or nitrous to take to fun numbers. Flows like a pair of AFR heads for a lot less with this package deal. Included with the heads is a Jegs Hydraulic Roller Cam with roller lifters and guides - .585 lift intake/exhaust - .228/.230 intake/exhaust duration – lobe separation 112 degrees. Compatible 7.4, 5/16”, .080 wall chromoly pushrods – 1.7 ratio rocker arms – High volume oil pump – Timing chain sprocket set. It should be very streetable too. What started out as a very simple head, cam and fuel management project for my 2000 C5 Corvette migrated into a bit of a nightmare because of the C5 drive-by-wire electronics system and California smog. I give up, my loss, your gain. The first $2000 takes it all.