Description
If you’re building a high-compression small block Chevy engine, piston selection directly impacts combustion efficiency, detonation resistance, and overall power output. The F.S.R. Tour Series GP flat-top design delivers reliable performance across racing and street applications by optimizing chamber volume and ring seal integrity. With forged construction and precision CNC manufacturing, this piston set handles sustained high-RPM loads without compromise.
- 4.035″ bore diameter
- Flat-top design
- Minus 5cc displacement
- Forged construction
- Ring grooves: 0.043″ x 0.043″ x 3.0mm
- Small Block Chevy fitment
- Set of 8 pistons
- F.S.R. Tour Series GP
- Bolt-in application
- MPN: 258029






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