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Thread: 4.0L roller rocker arms

  1. #1

    Default 4.0L roller rocker arms

    Does anyone know of a supplier for roller rocker arms? especially some taller ratio ones?
    For a 96 Cherokee 4.0
    1996 Cherokee Country
    2" BB with Rancho 9000
    Front and rear Class III tow points
    http://foremostcarguy.blogspot.com/

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    Quote Originally Posted by 86inacrate
    Does anyone know of a supplier for roller rocker arms? especially some taller ratio ones?
    For a 96 Cherokee 4.0
    Summit Racing have them under part# DCC-4529885 made by Mopar.

    Alum. Roller Rocker Arm Set, Jeep 2.5/ 4.0/ 4.2L, 1.6 Ratio, Single Cyl. Set
    $132.69.

    You will need to buy 6 sets. Cost comes to $796.14.

    Also Heseco has them for $645, comes complete with a ˝” valve cover spacer necessary for additional clearance.

    The rocker arm is adjustable for hydraulic or mechanical camshafts.



    Yella Tarra in Austrailia have them, sold in the US by Quadratec for $439.95.
    1993 Red YJ, 346 V8LS1; Comp Cams, Open LT Headers, Open K&N Filter, Mafless Tune, TH350, 3600 stall, NX nitrous Wet System, 33"X12.5x15 tires.


  3. #3
    Stroker Fever Dino Savva's Avatar
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    You'll find all you need to know about roller rockers for the 4.0 on this page of my site:

    http://www.jeep4.0performance.4mg.com/valvetrain.html

    If you click on the images, you'll go directly to the site that sells the product.

    1992 XJ 4.6L "Poor Man's" Stroker
    202rwhp @ 4700rpm (248bhp)
    258rwtq @ 3400rpm (311lbft)
    1/4 mile: 14.63 @ 94.4, 3450lb curb
    AX15, NP231, D30/D35
    Jeep Performance, Jeep Tech, Junker to Stroker

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    I think Heseco will be my best choice if I am ordering RR since their RR come with the valve cover spacer for $645. Thermostat housing spacer for $27.95 will be needed to prevent interference between the valve cover spacer and the TH.

    I am waiting for Heseco to give me a shipping quote and might decide to get those.
    1993 Red YJ, 346 V8LS1; Comp Cams, Open LT Headers, Open K&N Filter, Mafless Tune, TH350, 3600 stall, NX nitrous Wet System, 33"X12.5x15 tires.


  5. #5
    Registered diegom6's Avatar
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    Quote Originally Posted by XJ4.6NOS
    I think Heseco will be my best choice if I am ordering RR since their RR come with the valve cover spacer for $645. Thermostat housing spacer for $27.95 will be needed to prevent interference between the valve cover spacer and the TH.

    I am waiting for Heseco to give me a shipping quote and might decide to get those.

    but aren't yeall terra no needed of valve cover spacer? Shouldn't be better and also for the price?
    XJ: 4.6L High Output Stroker Forged Rods/Pistons
    - Powerdyne Supercharger
    - WJ Twin Caliper/Big Rotor Custom Kit
    - ARB Lockers
    -Dana30 -Dana44 Rear
    - AX15

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    will give rep for beer
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    yeh the yeall terras are cheaper and there is no need for the spacers... thats what I will be going with soon with my stroker buildup...

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    Quote Originally Posted by diegom6
    but aren't yeall terra no needed of valve cover spacer? Shouldn't be better and also for the price?
    Check with Dino, first. If you are talking about the non-adjustable YT RR then yes and you can buy them from Quadratec. But, if you mean the adjustable ones that are sold by YT of Australia you will need the valve cover spacer.

    I want to go for the adjustable RR. Might upgrade to a solid cam in the future.
    1993 Red YJ, 346 V8LS1; Comp Cams, Open LT Headers, Open K&N Filter, Mafless Tune, TH350, 3600 stall, NX nitrous Wet System, 33"X12.5x15 tires.


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    Registered diegom6's Avatar
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    Quote Originally Posted by XJ4.6NOS
    Check with Dino, first. If you are talking about the non-adjustable YT RR then yes and you can buy them from Quadratec. But, if you mean the adjustable ones that are sold by YT of Australia you will need the valve cover spacer.

    I want to go for the adjustable RR. Might upgrade to a solid cam in the future.

    thanks for the info Feiz, didn't know the TY ones ofered at 490$ or so were "Non Adjustable" need to think more in the future.
    XJ: 4.6L High Output Stroker Forged Rods/Pistons
    - Powerdyne Supercharger
    - WJ Twin Caliper/Big Rotor Custom Kit
    - ARB Lockers
    -Dana30 -Dana44 Rear
    - AX15

  9. #9
    Stroker Fever Dino Savva's Avatar
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    Quote Originally Posted by diegom6
    but aren't yeall terra no needed of valve cover spacer? Shouldn't be better and also for the price?
    It's all on my valvetrain webpage Diego. You can buy the "yellow terrors" directly from Yella Terra in Australia for less than what you'd pay at Quadratec.

    YT6627 non-adjustable AUS$485 fit under stock valve cover
    YT6328 adjustable AUS$535 need valve cover spacer

    Hesco sells the Mopar Performance RR's P4529885 for US$645 including valve cover spacer. You'll also need Hesco's t'stat housing spacer to prevent interference with the metal tube part.

    1992 XJ 4.6L "Poor Man's" Stroker
    202rwhp @ 4700rpm (248bhp)
    258rwtq @ 3400rpm (311lbft)
    1/4 mile: 14.63 @ 94.4, 3450lb curb
    AX15, NP231, D30/D35
    Jeep Performance, Jeep Tech, Junker to Stroker

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    Quote Originally Posted by Dino Savva
    It's all on my valvetrain webpage Diego. You can buy the "yellow terrors" directly from Yella Terra in Australia for less than what you'd pay at Quadratec.

    YT6627 non-adjustable AUS$485 fit under stock valve cover
    YT6328 adjustable AUS$535 need valve cover spacer

    Hesco sells the Mopar Performance RR's P4529885 for US$645 including valve cover spacer. You'll also need Hesco's t'stat housing spacer to prevent interference with the metal tube part.
    Sorry to bring this back but I was quoted Price on YT 6328 $ 717 Australian Dollars. It's higher than Dino's quote by AUD$182=US$136.

    I am checking to see if YT can provide valve cover spacer or if I can fabricate it at a local machine shop.
    1993 Red YJ, 346 V8LS1; Comp Cams, Open LT Headers, Open K&N Filter, Mafless Tune, TH350, 3600 stall, NX nitrous Wet System, 33"X12.5x15 tires.


  11. #11
    Registered diegom6's Avatar
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    I might spend that all money in anythign else that will give more Hp's besides my S/C :pstpst:
    XJ: 4.6L High Output Stroker Forged Rods/Pistons
    - Powerdyne Supercharger
    - WJ Twin Caliper/Big Rotor Custom Kit
    - ARB Lockers
    -Dana30 -Dana44 Rear
    - AX15

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