Engine Parts - Cylinder Heads

Key Features:

• CH350HA: 5.7L Hybrid early style 350 Cylinder Head
• 65cc combustion chamber, 176cc intake runner
• 1.94 intake valve, 1.50 exhaust valve
• Early intake bolt pattern, perimeter valve cover bolt pattern

Additional Details:

• ATTENTION: REPLACE IN PAIRS

Key Features:

• 454/7.4L GM Vortec Head Universal
• GM Casting 12560241, 10141279
• 100cc combustion chamber, 246cc intake runner