Manley Spring Retainer, RET-TI 1.625,+.100 TRP

This is the Manley Performance RET-TI 1.625,+.100 TRP spring retainer, part number 23665-16. It's designed to work with your valve springs, holding them securely in place under the stress of engine operation. This particular retainer is made from titanium, which is a strong yet lightweight material, helping to reduce overall valvetrain mass. The +.100 indication means it's sized 0.100 inches larger than standard, which is important for specific engine builds where valve spring seat pressures or installed heights need adjustment.

Manley Performance is known for making well-built engine components, and these retainers are no exception. The titanium construction offers good durability and resistance to the high temperatures and pressures found in the cylinder head. Using a titanium retainer can contribute to a more stable valvetrain, especially in high-performance applications where valve float needs to be minimized. This part is a solid option if you're rebuilding or modifying your engine and need a reliable component for your valve springs.