Hydraulic Roller 4.125 " Bore LS7 Heads suit OEM style Rocker Gear.

CID LS7 4.125" Bore Hydraulic Roller cylinder heads feature factory valve locations that accept OEM or aftermarket OEM Replacement Valvetrain Rocker Gear. Valve lengths for our hydraulic roller cylinder heads measure 5.550" OAL Rocker arm pedestals are machined into our shaft mount rocker pad area, making them extremely rigid with the rocker boltsc engaging deep into shaft mount pad that extends down to and is integral with the deck.  Machined from the same robust casting as our renowned shaft mount cylinder heads they are available with water or in a solid casting without water.  Cylinder Heads come standard with CHE Bronze valve guides and CHE Ductile Iron Valve Seats. Available options are Bronze CHE valve seats, Steel Exhaust guides with K Line inserts for the power adder crowd and chamber softening.  Ports developed by CT Porting.