Manley Standard .310in Stem Valves (7.87mm) Wear Caps (8 pcs) - 42139-8

Manley Standard .310in Stem Valves (7.87mm) Wear Caps (8 pcs)

Manley Steel Guide Plate Ford 302 Boss / 351C Modified w/ 3/8in Pushrod - Set of 8 - 42156-8

Upgrade your valvetrain with this high-performance set of guide plates. The heat-treated steel construction and black oxide finish deliver rock-solid alignment and long-term durability. Whether you’re building a serious street machine or a race-ready...

Manley Steel Guide Plate Single Big Block Chevy w/ 3/8in Pushrod - 42164-1

Upgrade your valvetrain with this high-performance set of guide plates. The heat-treated steel construction and black oxide finish deliver rock-solid alignment and long-term durability. Whether you’re building a serious street machine or a race-ready...

Manley Steel Guide Plates Ford 289/302W/351W (Pre-1977 Heads) w/ 5/16in Pushrods - Set of 8 - 42152-8

Upgrade your valvetrain with this high-performance set of guide plates. The heat-treated steel construction and black oxide finish deliver rock-solid alignment and long-term durability. Whether you’re building a serious street machine or a race-ready...

Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID - 22408-16

The Manley Street Master series delivers upgraded valve springs and components designed specifically for street-driven performance builds. Made from high-tensile chrome silicon steel with precision shot-peening and heat treatment for long life, Street...

Manley Subaru BRZ/Scion FR-S 2.0L Turbo Tuff Pro Series I Beam Connecting Rod (Single) - 14431-1

Manley's Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence...

Manley Subaru BRZ/Scion FR-S 2.0L Turbo Tuff Pro Series I Beam Connecting Rod Set (Set of 4) - 14431-4

Manley's Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence...

Manley Subaru EJ20/EJ25 5.216in H Tuff Plus Connecting Rod Set w/ARP625 - 15036R6-4

When it comes to H-Beam connecting rods, not all are created equal. Manley's H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same...

Manley Subaru EJ205/EJ257 5.216in L Turbo Tuff Pro Series I Beam Connecting Rod Set - 14436-4

Manley's Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence...

Manley Subaru EJ205/EJ257 5.216in L Turbo Tuff Pro Series I Beam Connecting Rod Set w/ ARP 625+ Bolt - 14436R6-4

Manley's Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence...

Manley Subaru EJ25 100mm Bore / 1.209in CD Platinum Series -17cc Dish Extreme Duty Piston Set - 632805CE-4

Our signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley...

Manley Subaru EJ25 100mm Bore / 1.209in CD Platinum Series -17cc Dish Piston Set - 632805C-4

Our signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley...