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ProMaxx Performance 9242

440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)

ProMaxx Performance 9242
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723-9242

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Estimated ship date 01/04/18 if Ordered Today
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$1,793.99
$1,693.99
ON SALE - $100.00 OFF
ProMaxx Performance 9242 440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB) $1,693.99
440 MAXX Aluminum Cylinder Heads
  • Big Block Chrysler (B/RB)
  • 240cc Intake Ports
  • 84cc Combustion Chambers
  • 2.19" Intake, 1.81" Exhaust Valves
  • .750" Lift Mech. Flat Tappet Valve Springs
  • 100% CNC'd Ports and Chambers
  • Assembled, 2/pkg.

  • ProMaxx Performance 9242 Details

    240cc Intake Ports

    Additional Cylinder Head Specifications
  • Valve Angle: 15°
  • Valve Seal Material: Viton
  • Spark Plug Type: Angled
  • Retainer Material: Steel
  • Maximum Spring Lift: .750" Mechanical Flat Tappet or Hydraulic Roller lifter
  • Through Head Oiling System
  • Standard Port Locations
  • Bronze Valve Guides

  • Maxx Quality, Performance and Affordibility!

    The ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm! This combined with a 5-angle competition valve job, diamond-honed bronze guides, hand bowl blending, and professional assembly to outperform the best brands in the business.

    Features:
  • A356-T6 Aluminum Construction
  • Available As-Cast with 210cc Intake Ports or 100% CNC-Ported with 240cc Intake Ports
  • As-Cast Heads feature some hand bowl blending
  • Efficient chamber design
  • Available bare or assembled
  • 5-angle competition valve job
  • Diamond-honed bronze guides
  • "MAXX" power for street or strip
  • Sold in pairs

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