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COMP Cams CL12-602-4 Big Mutha' Thumpr Hydraulic Flat Tappet Cam and Lifter Kit for Chevy Small Block Engines [Duration 243/257 @ .050]

249-CL12-602-4


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CL12-602-4 Big Mutha' Thumpr Hydraulic Flat Tappet Cam and Lifter Kit for Chevy Small Block Engines [Duration 243/257 @ .050]
$365.95
Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
  • 1958-1998 Chevy Small Block Engines 262-400 ci.
  • Lift: .500 in./.486 in.
  • Duration @ .050 in: 243/257
  • RPM Range: 2500-6400
  • Lobe Separation: 107
  • Usage: Street/Strip
  • Free Shipping - Estimated to ship direct from manufacturer on Monday , pending manufacturer availability. Learn More
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    CL12-602-4 - Comp Cams Thumpr Hydraulic Flat Tappet Cams is rated 4.7 out of 5 by 10.
    Rated 5 out of 5 by from thump cam I finally installed cam and started engine. Runs and sounds great, got another 350 to build will put in another one.
    Date published: 2024-03-25
    Rated 5 out of 5 by from -BIG THUMPR- CL12-602-4 GREAT SOUND AND THE BEST ALL AROUND FROM BOTTOM END TO TOP END PERFORMANCE IVE FOUND FOR MY SET UP.. I HAD TO ADD A ELECTRIC VACUUM PUMP, BUT ALL APPLICATIONS MAY NOT NEED ONE. 5 STARS IN MY BOOK ⭐️⭐️⭐️⭐️⭐️
    Date published: 2022-10-30
    Rated 5 out of 5 by from Wow!!!!!!! Can't believe my little 355 runs and sounds like this.
    Date published: 2021-12-15
    Rated 5 out of 5 by from Love it I absolutely love this cam. I'm running it in a 383 stroker an im amazed with it. Definitely will buy another one..... Thanks Comp
    Date published: 2020-08-10
    Rated 2 out of 5 by from thump cam I haven't installed it yet. shipping box was crushed and cam had fallen out of shipping box. lifters had shifted inside box, and there was no assembly lube with the cam.
    Date published: 2023-07-09
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    Will this cam fit a stock 72 Chevy 4 bolt main and what do you recommend 

    Asked by: Stock 350
    The Comp 249-CL12-602-4 cam can be used in a '72 350 block.
    Answered by: jshook
    Date published: 2024-06-03

    What size retainer plate do I need for a vortec 350 with this cam 

    Asked by: Sbc1
    The Comp 249-CL12-602-4 is a flat tappet cam and does not use a retainer plate.
    Answered by: jshook
    Date published: 2024-02-20

    Can I use 1.6 rockers with this cam..and what push rods are recommended 

    Asked by: tjkstanhope
    The Comp 249-CL12-602-4 cam can be used with 1.6 rockers.
    Answered by: jshook
    Date published: 2024-02-05

    Do you have to change valve springs to run this cam on stick heads thanks 

    Asked by: Rocket man 69
    The Comp 249-CL12-602-4 cam kit uses Comp 981-16 springs.
    Answered by: jshook
    Date published: 2024-03-04

    Can you use stock springs and push rods in a 85 sbc 305

    Asked by: Sgore
    The Comp 249-CL12-602-4 cam requires upgraded springs and can use stock length pushrods.
    Answered by: jshook
    Date published: 2023-12-09

    Can you use factory rocker arms for this cam?

    Asked by: Mcanipe51
    The Comp 249-CL12-602-4 cam kit is not recommended for factory rocker arms.
    Answered by: jshook
    Date published: 2023-12-09

    What stall converter do i need in a 70 c10

    Asked by: Big B
    The Comp 249-CL12-602-4 cam kit will want a 2800 stall.
    Answered by: jshook
    Date published: 2023-11-04

    Vortec 350 with 4 barrel carburetor would this work?

    Asked by: Sully
    The Comp 249-CL12-602-4 cam will fit a 350 block and 4-bbl carb.
    Answered by: jshook
    Date published: 2023-08-28
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