Engine Internals

Cosworth Forged Pistons are produced exclusively in house at our Northampton UK facility by the same engineers, machinists and machines as our high level motorsport pistons. Produced from proprietary alloy, Cosworth YD pistons feature a unique, light-weight skirt profile along with valve relief pockets.

Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi-valve cylinder head design ensures our camshaft designs are the most efficient in providing maximum usable power across the widest power band.

The connecting rod is the vital link between the piston and power. When engine output is increased, the demands placed on the connecting rod increase as well. To ensure engine reliability in all conditions, original connecting rods should be replaced with heavy duty specification parts.

Cosworth Forged Pistons are produced exclusively in house at our Northampton UK facility by the same engineers, machinists and machines as our high level motorsport pistons. Produced from proprietary alloy, Cosworth pistons feature a unique, light-weight skirt profile along with valve relief pockets.

High performance piston ring set for Cosworth pistons.

High performance piston ring set for Cosworth pistons.

Replaces the factory sheet metal timing belt guide to help reduce the possibility of the timing belt skipping a tooth during high rpm use. Precision machined from aluminum with a hard anodized finish.

Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures Cosworth camshaft designs are the most efficient in providing maximum usable power across the widest power band.

Cosworth Kevlar High Performance Timing belts are 300% stronger than original equipment timing belts and are the perfect compliment when installing Cosworth camshafts or cylinder heads.

The Cosworth Oil Filler Cap is machined from solid aluminum with the traditional Cosworth "three prong" ergonomic style. This light weight oil filler cap includes a genuine Subaru O-ring seal, pre-installed to ensure leak free operation on your engine.

Cosworth Sport brake kit's feature fully forged calipers for optimal strength and light weight. The bolt in bridge design allows for a super stiff caliper without sacrificing cooling. The end result is better performance with less vibration, noise, and pad taper.

Increased displacement means increased performance and the Cosworth 2.6L EJ25 stroker kit is the perfect way to add power and torque to your car. Each kit includes select, matched motorsport grade components ensuring maximum reliable performance.

Engine bearings are one of the most vital components within an engine and are often overlooked when considering high performance upgrades. Performance engineered, multi-layer bearings generate less heat than normal bearings by reducing friction.

Engine bearings are one of the most vital components within an engine and are often overlooked when considering high performance upgrades. Performance engineered, multi-layer bearings generate less heat than normal bearings by reducing friction.

The connecting rod is the vital link between the piston and power. When engine output is increased, the demands placed on the connecting rod increase as well.

Cosworth Forged Pistons are produced exclusively in house at our Northampton UK facility by the same engineers, machinists and machines as our high level motorsport pistons.

The connecting rod is the vital link between the piston and power. When engine output is increased, the demands placed on the connecting rod increase as well.

Cosworth Forged Pistons are produced exclusively in house at our Northampton UK facility by the same engineers, machinists and machines as our high level motorsport pistons.

Essential for high performance engine builds, heavy duty head studs reduce cylinder head movement in high boost or high compression engines optimizing cylinder head to block sealing. Cosworth Ultra High Performance Head Studs are manufactured from H11 tool steel.

Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time.