Hydraulic Roller profiles

Small Block Chevy size lobes

 

 

Adv. Dur. .050 Dur.          Cam lift            1.5                 1.6                 1.7

  240           188             .285          .427                 .456                 .484

  246           192             .300          .450                 .480                 .510                

  256           200             .310          .465                 .496                 .527                

  260           206             .333          .499                 .533                 .566                

  266           210             .333          .499                 .533                 .566                

  270           215             .333          .499                 .533                 .566                

  280           224             .350          .525                 .560                 .595                

  290           230             .340          .510                 .544                 .578

  286           230             .373          .560                 .598                 .635                

  288           232             .353          .530                 .564                 .600

  292           236             .360          .540                 .576                 .612

  294           242             .360          .540                 .576                 .612                

  304           242             .367          .550                 .587                 .624                

  300           248             .375          .563                 .600                 .638

 

 

Big Block Chevy size lobes

 

Adv. Dur.  .050 Dur.          Cam lift             1.5                 1.6                 1.7

  288                226                .345             .517                     ..552                     .587

  296               234                .358             .537                     .572                     .610

  306               236                .330             .495                     .528                     .560

  314               246                .340             .510                     .544                     .578

  308               257                .382             .573                     .611                     .650

  312               265                .382             .573                     .611                     .650