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ProMaxx Performance 185cc Aluminum Cylinder Heads Small Block Chevy

ProMaxx Performance 2171RPH
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ProMaxx Performance 185cc Aluminum Cylinder Heads Small Block Chevy $1,143.99
To order this item contact Customer Service at 1-800-345-4545.
185cc Aluminum Cylinder Heads
  • Small Block Chevy
  • 2.02''/1.60'' Valves
  • 185cc Intake Runner
  • 72cc Combustion Chamber
  • Straight Plug
  • Assembled
  • Sold as pairs

  • ProMaxx Performance 2171RPH Details

    185cc Aluminum Small Block Chevy Cylinder Heads

    Technical Specifications and Recommended Components:
    Combustion Chamber - 72cc 
    Weight - 55.00 lbs
    Intake Runner - 185cc 
    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

    The ProMaxx Performance Small Block Chevy Cylinder Heads are manufactured from cast aluminum and are offered with straight or angled spark plug ports, a variety of intake port runner, combustion chamber and valve sizes to work on all of your performance engine builds from mild to wild!

  • All New Parts and Castings
  • Accepts Perimeter Bolt Valve Covers
  • Stainless Steel Valves
  • 3/8" Screw-In Studs and Guideplates
  • Sold In Pairs

    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

  • Some parts are not legal for use in California or other states with similar laws / regulations