Identifying camshafts
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A cam made for use in a SBC that originally came with a hydraulic roller cam will have a step machined into the nose of the cam for the retainer plate. | A cam made for use in a SBC that originally came with a hydraulic roller cam will have a step machined into the nose of the cam for the retainer plate. | ||
| − | A cam without a step could still be a hydraulic (or solid) roller cam and it could still possibly be used in a late roller block, depending on if the lobe lift and whether the factory roller lifters were used (maximum lobe lift of about 0.354" before the factory lifters can lose contact with their retainers, aka "dogbones"). Aftermarket lifters are available that are longer and prevent this from happening. The difference in the nose would mean | + | A cam without a step could still be a hydraulic (or solid) roller cam and it could still possibly be used in a late roller block, depending on if the lobe lift and whether the factory roller lifters were used (maximum lobe lift of about 0.354" before the factory lifters can lose contact with their retainers, aka "dogbones"). Aftermarket lifters are available that are longer and prevent this from happening. The difference in the nose would mean using a cam button to set the cam end play. |
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