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Speedmaster Street Series Hydraulic Flat Tappet Top End Engine Kit Big Block Chevy 454 Includes:

746-PCE435.1067


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Street Series Hydraulic Flat Tappet Top End Engine Kit Big Block Chevy 454 Includes:
Street Series Hydraulic Flat Tappet Top End Engine Kit
  • Big Block Chevy 454
    Includes:
  • Fully Assembled Cylinder Heads
  • Intake Manifold/Gaskets
  • Valve Covers
  • Roller Rockers
  • Guideplates
  • Screw-in Studs
  • Currently unavailable.
    This product is not available, please call customer service for options, at 1-800-345-4545.

    Would like to know Int. & Exh. Valve sizes please

    Asked by: BobbyC1972
    The valve sizes will be - intake 2.260" exhaust 1.880"
    Answered by: Rusty B
    Date published: 2019-12-09

    What are the CC of the heads?

    Asked by: BBC crazy
    The cc on these heads is 119.
    Answered by: Jon Jegs Tech
    Date published: 2019-12-09

    Whats the max rpms

    Asked by: Ives1
    This kit has a maximum of 6500 rpm.
    Answered by: Jon Jegs Tech
    Date published: 2017-10-27

    WHAT CAM WOULD YOU RECOMMEND TO GO WITH THIS KIT? LOOKING TO PULL ABOUT 55OHP OUT OF THIS ENGINE WILL THIS KIT DO THAT?

    Asked by: BIGCHUCK
    The Jegs part number 555-200121 cam kit would be a good choice for this application.
    Answered by: Rusty B
    Date published: 2018-06-30

    What headers will work with these heads , and will this kit support 500 HP ?

    Asked by: poncho vita
    This will depend on your application, most of the headers we have will support that power output.
    Answered by: Rusty B
    Date published: 2017-10-11

    what would I have to do to these heads to increase the maximum valve lift to .600?

    Asked by: david69
    To allow for valve lift above .550 you will need to have a different valve spring.
    Answered by: Jegs Tech
    Date published: 2019-01-23
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