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ProMaxx Performance 185cc Aluminum Cylinder Heads Small Block Chevy


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185cc Aluminum Cylinder Heads Small Block Chevy
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185cc Aluminum Cylinder Heads
  • Small Block Chevy
  • 2.02''/1.60'' Valves
  • 185cc Intake Runner
  • 64cc Combustion Chamber
  • Straight Plug
  • Assembled
  • Sold as pairs
  • Free Shipping - Estimated to ship direct from manufacturer on 10/07/22 , pending manufacturer availability. Learn More

    Thank you! We will notify you when this product becomes available.


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    2169 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Awesome Deal! Units arrived quickly in perfect condition, installed easily and look and perform great!
    Date published: 2017-03-01
    Rated 5 out of 5 by from Great heads would recommend anyone to buy them great looking and performance head
    Date published: 2015-12-31
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    I have a 1972 Chevelle with 350 engine. Can I use my original stamped steel rocker arms with these heads if I order them set up for flat tappet hydraulic cam? I am running a 350 horse 327 cam with .447" lift on intake and exhaust. Thanks

    Asked by: Mike350
    The ProMaxx cylinder heads will accept stock rocker arms.
    Answered by: jshook
    Date published: 2022-08-11

    Will an edlebrock 2975 victor jr intake fit these heads?

    Asked by: Jstan1981
    Yes, the Edelbrock Victor Jr intake will fit these heads.
    Answered by: Rusty B
    Date published: 2021-01-04

    Would these be great heads for a stock 5.3? I got bad luck with the cracked heads sadly..

    Asked by: Jack18
    These heads are made to fit the early generation small block engines, if your engine is a LS series you will need this type of head - https://www.jegs.com/i/Chevrolet-Performance/809/12629063/10002/-1
    Answered by: Rusty B
    Date published: 2018-04-19

    I am considering the 2169 ProMaxx heads for my 1959 corvette 283 SBC which has a 56cc combustion chamber. Is this head too much to consider for a slight performance upgrade while also upgrading to the CompCam 249-12-234-2 ? This cam is close to original.

    Asked by: josephB
    That head is for a 4'' bore block , the valves will have an interference issue with the 283
    Answered by: SteveM
    Date published: 2018-02-24

    Are these heads available in bare form?

    Asked by: Ruckus35
    Yes, they are available - Please call our tech line for assistance 1-800-345-4545 ext 2001 the part number is 723-2173
    Answered by: Rusty B
    Date published: 2018-02-16

    Will the included springs and hardware work on a Hydraulic Roller block or would stiffer springs be needed? Cam wouldn't be too radical, ballpark 234 at 050,. 520-.540 lift 112-114 LSA. Doing a build on a low mileage Vortec roller 350.

    Asked by: B Hawkins
    As long as the lift does not exceed .575" it should work.
    Answered by: Rusty B
    Date published: 2018-10-02
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