225cc Aluminum Cylinder Heads
• Small Block Chevy
• 2.02''/1.60'' Valves
• 225cc Intake Runner
• 64cc Combustion Chamber
• Straight Plug
• Assembled
• Sold as pairs
  
  

  Technical Specifications and Recommended Components:
  Combustion Chamber - 64cc
  Weight - 55.00 lbs
  Intake Runner - 225cc
  Exhaust Runner - 62cc
  Intake Valve Size - 2.02"
  Exhaust Valve Size - 1.60"
  Max. Valve Spring Lift - .575" Hydraulic Flat Tappet
  Spring Pressure - Closed 115 lbs. @ 1.800", Open 315 lbs. @ 1.225"
  Valve Seal Material - Viton
  Valve Guide - Manganese Bronze
  Retainer Material - Steel
  Valve Job - 5-angle
  Head Bolts - ARP 070-134-3601
  Valve Spacing - OEM
  Valve Seats - Hardened Steel
  Intake Gasket - Fel-Pro 375-1206 or 375-1266
  Exhaust Gasket - Fel-Pro 375-1405
  Head Gasket - Fel-Pro 375-1004 or 375-1094
  Spark Plug - 750" Reach Gasket Seat
  

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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