CSG - 2015+ FA20 / 4U-GSE Cylinder Head Program - Subaru BRZ / Scion FR-S / Toyota 86

CSG can provide a built FA20 / 4U-GSE cylinder head that can be bolted on to your short block. The goal of this program is to improve overall flow, reliability, response, and capacity to use camshafts while building for both Naturally Aspirated and Forced Induction applications. Recommended for street to upgraded boost applications.

Note: Valvetrain is updated to full 2015+ components using the best available components from Ferrea. Requires 2015+ valvetrain assembly components (rocker arms, camshafts, camshaft caps, etc.) and shims (sold separately and requires your engine builder to provide services for). Please inquire us for components to finalize your 2015+ upgrade.

- Full ported head with full custom Ferrea valvetrain
- Ferrea Competition Plus Intake & Exhaust valves
- Exhaust valve +1mm oversize
- Ferrea Dual Valve Springs
- Ferrea Titanium Retainers
- Ferrea Spring Seat Locator
- Subaru 2015+ Valve Stems


Core Charge: Upon returning a good condition cylinder head, you will be refunded $1000 for cylinder head core charge.