Engine strengthening is crucial for safety and reliability of FR-S and BRZ over the 350hp mark. GReddy engineers have drawn from our FR-S race experience to assemble a complete stroker kit for the FA20/4U-GSE boxer engine, using only superior components. The kit features 9.5:1, 86mm bore. 2618 T6 forged aluminum pistons with specially designed shape ideal for high boost applications. This is connected to extra strong H-beam 433OM steel alloy forged connecting rods with a factory style 18deg. split line. And at the heart of the 2.1L kit is our dynamic balanced, E4340 Cr-Ni-Mo alloy billet steel stroker crankshaft.
P/N 13511600 - GReddy Superior Spec. 2.1L FA20/4U-GSE Stroker Kit - MSRP $6500
Forged Pistons (4)- 9.5:1 Compression
- 86mm bore
- 2618 T6 high tensile forged aluminum
- ring widths 1.0 / 1.2 / 2.8mm
- .866 x 2.250 free floating carbon steel wrist pins
Connecting Rods (4)
- Strong H-Beam Design with factory style 18deg. split line
- Forged 4330M steel Alloy
- CNC machined, shot peened
- Silicone bronze bushings for full floating pins
- Top quality 3/8" bolts
Stroker Crankshaft (1)
- E4340 Aircraft quality Cr-Ni-Mo alloy billet steel
- Triple heat-treated
- Ion-plasma nitride journals
- High speed straight line oiling system
- Dynamic balanced
and for the full line of GReddy Total Tune Up products for the FR-S/BRZ/86 please see: