SBM FT Piston Set 4.030 Bore -7.6cc

The RACE TEC PISTONS SBM FT Piston Set 4.030 Bore -7.6cc is a forged small block Mopar piston set engineered for engine builders and performance enthusiasts seeking precise bore sizing and controlled compression ratios. This eight-piece forged piston set features a flat-top design with 4.030-inch bore diameter and -7.60 cubic centimeter dish volume, making it ideal for small block Mopar engine builds requiring specific combustion chamber dynamics and detonation control.

Each piston in this set is manufactured from forged material to withstand high cylinder pressures and thermal cycling common in performance and street applications. The flat-top configuration maximizes combustion efficiency while the negative cc volume reduces effective compression ratio—a critical specification when matching pistons to cylinder heads and intake manifolds with specific port volumes. The standardized ring groove dimensions (1.5 x 1.5 x 3.0 mm) ensure reliable sealing and oil control across the four compression rings and one oil ring included in typical small block Mopar applications.

This piston set serves engine rebuilders, machine shops, and performance builders who need OEM-correct or performance-upgrade replacement pistons for small block Mopar platforms including 273, 318, 340, and 360 cubic inch engines. Whether restoring a classic muscle car, upgrading a street engine, or assembling a competition build, these forged pistons provide the dimensional accuracy and material strength required for reliable operation across diverse RPM ranges and fuel octane ratings.

Small block Mopar engines remain popular in hot rod, restoration, and performance markets due to their compact displacement, aftermarket support, and tuning flexibility. The -7.6cc dish volume on these pistons supports conservative compression ratios suitable for 87-octane fuel or aggressive timing curves on premium fuel, giving builders flexibility in final engine tuning and knock resistance. RACE TEC PISTONS specializes in forged piston manufacturing across domestic and import platforms, providing builders with precision components that meet exacting bore tolerances and dimensional specifications.