Want to build a 2.4l out of your FA20 engine in your BRZ/FR-S? Look no further. This hybrid shortblock developed by us in 2016 is the perfect answer. This block utilizes an FB25 case, FA20DIT Crankshaft, and a custom Forged piston to match up with your FA20 AA20 heads from your BRZ/FR-S and keep your compression ratio the same as stock 12.5:1
With a larger bore, this FB25 hybrid block will give you huge gains in Displacement, torque, and response.
This block uses your existing FA20 AA20 BRZ/FR-S heads, timing components, timing cover, mid pan, oil pan, etc and is a direct shortblock swap with the exception of some minor tweaks to the PCV/Breather System