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
