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ProMAXX Cylinder Heads_MOPAR Big Block_MAXX_210cc_2.140/1.810_84 cc
ProMAXX Cylinder Heads

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Optional Cylinder Heads:

PMX-9441 Bare
PMX-9440 Hydraulic Roller


The Pro MAXX MAXX Series is taking the lead in affordable performance cylinder heads to the next level, since there are no comparable cylinder heads available. The all new ProMAXX ultra smooth, Grade A 356-T6 aluminum casting, is CNC machined to create the perfect platform for newly developed runner and chamber designs. This is combined with a 5 angle competition valve job, diamond honed bronze guides, hand bowl blending and professional assembly....all performed right here in the United States. ProMAXX MAXX Series cylinder heads produce out of box performance that outperforms anything in it's class.

  • 210cc Intake runner
  • Ultra smooth 356-t6 Aluminum
  • Hand bowl blended
  • Unshrouded chamber
  • Diamond honed guides
  • Large spring pockets
  • 5 angle valve job
  • Precision CNC machining
  • Multiple spring options


Assembled heads feature:
  • One piece stainless steel valves
  • 21-4N back cut, swirl polished
  • Multiple spring options
  • Designed, machined and assembled in the USA

Item# Item Name Price Qty Add
PMX-9441 MAXX_MOPAR BB_210cc_Bare
$1,173.00
PMX-9440 MAXX_MOPAR BB_210cc_H/R
$1,440.00
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Flow Chart:

Flow Data: cfm @ 28 inches of Water
Lift .200 .300 .400 .500 .600 .700
Intake 145 206 256 294 294 296
Exhaust 126 160 189 206 219 226




Technical Specs:
Item Code PMX-9440-000
Vendor ProMAXX Performance Products
Product Type Cylinder Heads
Product Model MAXX Series
Engine Family MOPAR Big Block
Material 356-t6 cast aluminum
Weight 72 lbs
Combustion Chamber 84cc
Plug Orientation Straight
Intake Runner 210 cc
Exhaust Runner
Intake Valve Diameter 2.140
Exhaust Valve Diameter 1.10
Valve Seats Hardened Steel
Valve Guides Manganese Bronze
Valve Seals Viton
Standard Retainers Steel
Valve Job Type 5 Angle
Head Bolts
Valve Spacing OEM
Intake Gaskets
Exhaust Gaskets
Head Gaskets
Spark Plug
Torque Specifications




Valve Spring Pressures:

Hydraulic Flat Tappet - .600 Max Lift:
Closed
Open

Hydraulic Roller - .700 Max Lift:
Closed
Open




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Cylinder Heads > ProMAXX Cylinder Heads > Chrysler _ Big Block