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

723-9242


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440 MAXX Aluminum Cylinder Heads Big Block Chrysler (B/RB)
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$2,387.00
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.
  • Free Shipping - Estimated to ship direct from manufacturer on 09/30/24 , pending manufacturer availability. Learn More
    QTY

    What is minimum bore requirement? 

    Asked by: JJ24
    The Promaxx 723-9242 cylinder head works with minimum 4.32 inch bore.
    Answered by: jshook
    Date published: 2023-12-18

    Do these heads require offset rockers?

    Asked by: Slopar
    The ProMaxx 723-9242 cylinder head does not require offset rockers.
    Answered by: jshook
    Date published: 2023-02-13

    Any flow numbers available for these heads?

    Asked by: Madz
    Promaxx 723-9242 Flow Data @ 28″ water lift 200 300 400 500 600 700 800 900 Int 157 224 275 305 318 323 327 330 Ext 108 152 184 208 227 239 247 253
    Answered by: langus
    Date published: 2022-11-07
    • y_2024, m_9, d_18, h_11CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
    • cp_1, bvpage1
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    • loc_en_US, sid_10001_10001_3665200, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

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