CID-LT1/LT4 BARE CYLINDER HEADS WITH VALVE AND SPRING OPTIONS

CID CNC PORTED CYLINDER HEADS FOR GEN V LT1/LT4 APPLICATIONS   These CID cylinder heads come from Gwatney Performance with LT1 spec intake and exhaust valves and a 55cc combustion chamber on the LT1 castings, while LT4 spec intake and exhaust valves and a 62cc combustion chamber are offered with the LT4 castings. When you add a BTR spring kit to these, you will get a combination that will close in on the 700hp mark naturally aspirated with a properly sized camshaft and intake manifold.    NOTE: Check piston to valve clearance before final installation!    LIFT FLOW 0.300 227 0.400 291 0.500 328 0.600 336 0.700 346 0.800 354   SK007 valve spring kit components:  - SP001-1 valve springs (QTY 16) - SR008-16 titanium retainer set (QTY 1) - SL565060-16 spring locator set (QTY 1) - VS LS KIT valve seal set (QTY 1) - VL7°8MM-32 valve lock set (QTY 1) - BS015-16, .015 thick shim set (QTY 1)   SK013 valve spring kit components: - SP014-1 valve spring (QTY 16) - SL565045CON-16 valve spring locator set (QTY 1) - VS LS KIT valve seal kit (QTY 1) - VL7°8MM-32 valve lock set (QTY 1)