Roller Rockers
I'm using Crane gold 1.6 ratio rockers in my Ramcharger's 360, here's some basic specs:
Compression: 10.2:1
Heads: mid 80's 360 head with the air injection ports drilled, tapped and stainless hex long set screws spun in then ground down to match the port. 1.60 exhaust and 2.02 intake with a mild home port job (pocket port) and 3 angle valve job. Springs recommended by Crane for the cam and set to the recommended installed height.
Cam: Crane H-272-2, 216 and 228 degrees duration @ .050 lift, .454 and .480 lift with a 1.5 rocker, .484 and .512 lift with a 1.6 rocker. This is ground a 112 degree lobe center. This is Crane's description: GOOD IDLE, DAILY USAGE AND OFF ROAD, TOWING, PERFORMANCE AND FUEL EFFICIENCY, 2600-3000 CRUISE RPM, 8.75 TO 10.5 COMPRESSION RATIO ADVISED. BASIC RPM 2000-5000.
I would like to see 350 hp and a nice wide torque band with this set up.