Crower 68923-16 Features:

Set of 16 valve spring seat cups for performance valve spring applications. Dimensions: 1.410 in. OD, 1.310 in. ID, 0.570 in. guide locator diameter. Helps keep valve springs from wandering during engine operation. Protects softer aluminum cylinder heads from galling and spring seat damage.

Spring Seat Cups 1.410 1. 16-Piece Set, 1.310 In. Features:

• Set of 16 valve spring seat cups for 1.410 in. OD springs, 1.310 in. ID fitment, 0.570 in. guide locator sizing
• Prevents valve spring wander under high-load operation, promotes stable spring seating on performance cylinder heads
• Helps protect softer aluminum heads from galling and spring-induced seat damage during repeated high-rpm use
• Ideal for stock-to-dual or triple-spring upgrades where larger spring OD or smaller ID creates seat fitment issues
• Can reduce or eliminate seat cutting and shimming needs, supports square spring seating for consistent valvetrain setup