The Whites Tappet Block/Oil Pump Alignment Screws are designed to perfectly align the holes from crankcase to the tappet block. Use 2 to align rocker boxes on Evolution style heads. They can also be used in twin cam oil pump alignment applications. Constructed from chrome vanadium steel with 1/4"-20 threads.

Used to perfectly align crankcase holes to tappet block holes
Compatible with rocker boxes on evolution style heads
Can also be used in twin cam oil pump alignment applications
Manufactured from chrome vanadium steel
Constructed with 1/4"-20 threads