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ProMaxx Performance 9170 MAXX Series Aluminum Cylinder Heads for Big Block Ford

723-9170


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9170 MAXX Series Aluminum Cylinder Heads for Big Block Ford
$1,850.00
MAXX Series Aluminum Cylinder Heads
  • As-Cast
  • 170cc Intake Ports
  • 72cc Combustion Chambers
  • 2.09'' Intake / 1.66'' Exhaust Valves
  • .600'' Max Lift Hydraulic Flat Tappet Springs
  • Stainless Steel Valves
  • Assembled, 2/pkg
  • Free Shipping - Estimated to ship direct from manufacturer on 07/30/26 , pending manufacturer availability. Learn More
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    I have a new 406 short block. Will the promaxx heads work on it

    Asked by: Tagalong
    The Promaxx 723-9170 cylinder head will fit a 406 FE block.
    Answered by: jshook
    Date published: 2026-07-16

    Is the head for a 360 fe tapped for the steering pump bracket

    Asked by: Joe1
    The ProMaxx 723-9170 cylinder head has accessory bolt holes.
    Answered by: jshook
    Date published: 2026-01-12

    What brand valves to the heads come with?

    Asked by: Noah
    ProMaxx does not state brand names on the 723-9170 cylinder head.
    Answered by: jshook
    Date published: 2025-04-30

    Will these heads fit on a 352 FE?

    Asked by: Anthony
    Yes, the ProMaxx 9170 Can be used on a 352 FE engine.
    Answered by: Seth
    Date published: 2026-01-30

    The cam I have has a lift of 611int and 611 exhaust. Do they come that I can run this lift. I saw max 600 lift in specs for these. Thanks

    Asked by: Knolte
    The ProMaxx 723-9170 Is not offered with a different spring for a flat tappet cam.
    Answered by: Seth
    Date published: 2024-08-01

    Will these cylinder heads work on a FE 360?

    Asked by: JPF100
    The Promaxx 723-9170 cylinder head will fit an FE 360 engine.
    Answered by: jshook
    Date published: 2024-06-19

    Will these springs work with solid lift cam and solid lifters

    Asked by: 1966427
    No, these springs are designed for a hydraulic camshaft.
    Answered by: Rusty B
    Date published: 2018-02-01

    I don't see accessory bolt holes in the end of the head or am i wrong? Did they put time certs or hili coils in the rocker bosses, exhaust flanges, intake ports? Thanks Mark C.

    Asked by: Mark
    You will need to add accessory holes if you require them in your application. These heads do not have heli coils in them.
    Answered by: Rusty B
    Date published: 2024-06-01
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    Some parts are not legal for use in California or other states with similar laws / regulations

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