86/BRZ Forged FA20 Long Block - Boosted Engineering

The Boosted Engineering BE650 Forged FA20 Long Block is built using a brand-new OEM FA20 shortblock as the foundation — not a used core.
We then upgrade it in-house with forged pistons, forged rods, and race-grade rod bearings, along with precision-set clearances designed for boosted performance and long-term reliability.

This engine is engineered to support up to ~650bhp with the correct turbo system, fueling and tuning. Perfect for high-performance street builds, time attack, club racing, and drift applications.

Key Build Features

• Brand-new OEM Subaru shortblock

• Forged pistons (86/BRZ compression spec)

• Forged I-beam connecting rods

• Race-grade rod & main bearings

• ARP 11mm head studs

• MLS head gasket

• Performance valve springs (50psi capable)

• Balanced rotating assembly

• Full new OEM gaskets & seals

• Head inspection, machining & assembly included

• Correct clearances set for turbo E85 / medium boost

Installation

Professional installation & ECU calibration recommended
✅ Fitting available at our Carrara, QLD workshop

✅ Toyota 86 / BRZ / FR-S (FA20) Warranty Blurb

Warranty: 15,000km / 12-month limited performance warranty covering assembly workmanship only.
Professional installation and tuning required!

The following are typically required to run this kit at intended output. Boosted Engineering can supply or advise on all of them.

• ECU tune (custom)Boosted Engineering supplies base map
• Upgraded fuel systemInjectors, fuel pump — spec varies with output
• Upgraded ignitionR35 coilpack conversion recommended
• Upgraded clutchTwin-plate for higher-power builds
• Oil cooler kitRecommended for sustained high-load use
• Upgraded axlesFor 350+ kW builds

The Street Kit is designed for daily-drivable turbo builds with reliable, responsive power delivery. The Race Kit is oriented toward circuit and drag use where higher output and modular servicing are priorities.

The kit is designed for bolt-on installation in a suitably-equipped workshop. Installation is available at our Carrara QLD workshop, or through our trusted partner network in most metropolitan areas.

Approximate installation time — 20 to 30 hours depending on configuration and supporting work.