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We showed you proper valvetrain geometry above on an installed valve, but before we got too carried away, we double-checked our piston-to-valve clearance before final installation. We pretty much knew we could get away with our chosen lift figures based on the bigger cam specs that had been contemplated at this engine's inception, but it pays to doublecheck before piston meets valve- right? even with the bigger 'stick, we had 0.175-inch clearance on the exhaust side and an amazing 0.295 inch on the intake.
Hydraulic Roller Cam - Wake-Up 'Stick

 We showed you proper valvetrain geometry above on an installed valve, but before we got too carried away, we double-checked our piston-to-valve clearance before final installation. We pretty much knew we could get away with our chosen lift figures based on the bigger cam specs that had been contemplated at this engine's inception, but it pays to doublecheck before piston meets valve- right? even with the bigger 'stick, we had 0.175-inch clearance on the exhaust side and an amazing 0.295 inch on the intake.  View Related Article

 

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