Crower 68947-16 Features:

Crower spring seat discs, part No. 68947-16, set of 16 pieces for performance valvetrain applications. Dimensions: 1.270 in. OD, 0.615 in. ID, and 0.505 in. step for precise spring location. Approximately 0.060 in. thick to help keep valve springs from wandering during engine operation. Helps protect aluminum cylinder heads from galling by providing a stable spring seating surface.

Spring Seat Discs 1.270 . 0.060 In. Thick 16-Piece Features:

• 1.270 in. OD seat discs for spring location and added stability during sustained high-rpm valvetrain operation
• 0.615 in. ID with 0.505 in. step for precise fitment in performance-oriented cylinder head valvetrain setups
• 0.060 in. thickness helps protect aluminum heads from galling under repeated valve spring contact load
• Prevents valve spring wander to maintain consistent spring position in demanding high-performance engine builds
• 16-piece set for complete V8 installation and reliable valvetrain protection during engine assembly service