BBC Dome Piston Set 4.600 Bore +36.6cc

The BBC Dome Piston Set 4.600 Bore +36.6cc by Race Tec Pistons delivers precision-engineered performance for big-block Chevy builds requiring maximum combustion chamber volume and efficiency. This eight-piece forged piston set is designed for high-performance engines where dome geometry plays a critical role in compression ratio tuning and fuel economy optimization. Whether you're building a street engine, stroker, or competition platform, these pistons provide the dimensional accuracy and material quality that serious engine builders depend on.

Constructed from premium forged aluminum alloy, the BBC Dome Piston Set features a +36.60 cubic centimeter dome design that increases combustion chamber volume—ideal for applications requiring lower compression ratios or custom chamber matching. The 4.600-inch bore specification ensures compatibility with standard big-block Chevy deck dimensions and aftermarket block platforms. Ring groove geometry is precisely machined at 1.5 x 1.5 x 3.0 millimeters to maintain consistent ring seal and minimize blow-by across RPM ranges. The dome profile promotes controlled flame travel and efficient fuel burn while reducing detonation risk in turbocharged or nitrous-assisted applications.

This piston set serves engine builders and performance shops fabricating big-block Chevy engines for street machines, truck platforms, and dedicated race vehicles where compression ratio flexibility is essential. The +36.6cc dome volume makes these pistons particularly suited for stroker builds, forced-induction applications, or builds incorporating aftermarket cylinder heads with large combustion chambers. Each set includes eight pistons for complete eight-cylinder big-block installations. Proper ring end-gap sizing, honing to exact specifications, and correct piston-to-wall clearance are critical for optimal performance and longevity during installation.