Edelbrock 60435: 60435 Performer RPM High Compression 454 O-Port Cylinder Heads for Big Block Chevy
Performer RPM High Compression Aluminum Cylinder Heads - Oval Port
Big Block Chevy 396-502ci (1987-1995 454 TBI engines will yield 8.8:1cr) Valve Springs for Hydraulic Roller Port Volume: 290cc/110cc Valve Size: 2.19"/1.88" 100cc Combustion Chambers Assembled Sold Individually