Lifter bore .904 (std), 1″ , 1.062″ , 1.125″ Lifter bore centers from 1.812(std) to 2.200 ( fuel is usuall 1.9, fathead is usually 2.0 ) Guidbars – can be removable, removeable on one side (early KB) or raised (.400″) mega block and some others Morel : #5449(1 pair=4448) old#4847(1 pair=4182) •1.000D •.920 Roller Diameter •TOP FUEL/TAD? – SINGLE EXH ROLLER # ???? •1.000D •.920 Roller Diameter •TOP FUEL – DOUBLE EXH ROLLER # 4848 (1 pair=4204) •1.063D •.920 Roller Diameter •TOP FUEL – Double EXH ROLLER # – 5172-5173-5175-5176 TOP FUEL LIFTER/SINGLE EXH ROLLER ? Crane: #95543-16 – .904 – +.100 -.200 spread, .120″ PR height #66548-16 – .904 – 1.800 (stock) spread #66542-16 – .904 – +.100 -.200 spread #66550-16 – .904 – +.100 -.200 spread ( PR Oiling) #66547-16 – 1.000 – +.100 -.200 spread, Std PR height #66548-16 – 1.063 – .920″ wheel diam.X .595″ wide +.100″ or .200″ Spread #66549-16 – 1.063 – .920″ wheel diam.X .595″ wide +.100″ or .200″ Spread, +.200″ Tall PR height R-280/500 Lifter Rise Duration increase with .810″ Roller instead of .750″ .020 lift 0.8 deg .050 1.3 .100 1.6 .200 1.7 .300 1.4 .400 0.9
