PRC Brawler LS3 Style CNC Ported Cylinder Heads w/TSP .660″ Spring Kit & Titanium Retainers

The TSP Brawler Series CNC LS3 Cylinder Heads provide a fully CNC-ported LS3-style cylinder head package designed as an upgraded replacement for factory LS3-style heads. Inspired by the factory GM LS3 casting, the Brawler heads use the same proven CNC porting program as PRC-ported GM LS3 cylinder heads, featuring a 257cc intake port.

Each cylinder head is equipped with TSP stainless steel valves, a TSP/PAC .660″ dual valve spring package, and titanium retainers. The heads are supplied fully assembled and tested for a ready-to-install performance upgrade.

KEY FEATURES

• 257cc CNC-Ported Intake Runners
• Same CNC porting program used on PRC-ported GM LS3 cylinder heads
• CNC 5-Angle Valve Job
• Approximately 71cc Combustion Chambers
• TSP/PAC .660″ Dual Valve Spring Kit
• TSP Titanium Retainers
• 2.165″ Hollow-Stem Stainless Steel Intake Valves
• 1.600″ Stainless Steel Exhaust Valves
• Fully Assembled and Tested

DYNO PERFORMANCE

AIRFLOW PERFORMANCE

Note: Dyno and airflow results are based on the tested configurations. Actual performance gains may vary depending on engine displacement, camshaft, compression ratio, induction system, exhaust, and tuning.