Manley 90-99 Mitsubishi 4G63(T) DSM / 90-06 Evo DOHC 6.56mm Bead Loc Valve Locks (8pc) - 13016-8

Manley Performance Valve Locks are precision-machined to securely retain the valve spring retainer to the valve stem, ensuring accurate valvetrain geometry and dependable performance. Available for...

Manley 90-99 Mitsubishi 4G63-4G63T DSM DOHC 16 Valve Spring and Retainer Kit (w/ Valve Locks) - 26115K

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley 90-99 Mitsubishi 4G63-4G63T DSM DOHC 16 Valve Spring and Retainer Kit (w/o Valve Locks) (16 e - 26115

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley Acura (B16A B18C B17A) / Honda (H22 V-Tec) 16pc Titanium Retainers - 23100-16

Upgrade your valve train with Manley Performance Titanium Retainers and other lightweight titanium options designed specifically for high-revving sport compact engines. Machined from aerospace-grade...

Manley Acura B Series V-Tec HP Race 16pc Valve Springs - 22105-16

Engineered for today’s high-revving sport compact engines, Manley valve springs deliver exceptional durability, precise control, and consistent performance. Manufactured from premium alloys and...

Manley Acura B Series V-Tec Valve Spring and Retainer Kit (w/ Valve Locks) - 26105K

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley Acura B Series V-Tec Valve Spring and Retainer Kit (w/o Valve Locks) - 26105

Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley Alcohol/Fuel Classes/ProMod NexTek Series High Performance Valve Springs - 221461-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chevy LS Valve Spring and Tool Steel Retainer Kit (w/ Valve Locks) - 26361634KS

Manley Performance LS & LT NexTek® valve spring kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley Chevy LS/LT1/LT4 Valve Spring and Titanium Retainer Kit (w/ Valve Locks) - 26351148KS

Manley Performance LS & LT NexTek® valve spring kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and...

Manley Chevy SBC LS-Series NexTek Series High Performance Valve Spring - Single - 221436-1

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...

Manley Chevy SBC LS-Series NexTek Series High Performance Valve Springs (2 valves per cylinder) - 221436-16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most...