Thread: WTB Camshaft/pushrods/accessories (need advice)

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  1. #1 WTB Camshaft/pushrods/accessories (need advice) 
    GTX Level Member wstefan20's Avatar
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    Well, I've finally got the permission from the wife to finish up my upgrades and topswap while the engine is out! I know it's a long shot, but figured I'd see if anyone had any used parts for sale before I go ahead and spend the money for new.

    Other part of this post is that I'm not 100% sure what y'all recommend for camshafts. I've seen a lot of conflicting information regarding gtp cams. Basically, I want something that I can do without machining heads (if possible), and still have plenty of room for pulley drops and upgrades. For now, I'm thinking of ZZP's XP cam with LS7 lifters 7" pushrods, dual timing chain, gxp chains for my transmission, and 130# springs (is this too heavy?). However, I've heard some pretty unsavory things about ZZP's quality and customer service, so if there's another camshaft that's better, I'd be open to it. I intend on starting out with the stock pulley size since this will be my first topswap, so that I can get comfortable with tuning first. Any other parts that I'm missing to go with this cam?

    Anyways, thanks in advance!
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  2. #2 Re: WTB Camshaft/pushrods/accessories (need advice) 
    Turbo is the way to go. BillBoost37's Avatar
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    Like you I had heard rumors and decided to call around and ensure the correct specs with the parts I was putting together. ZZP wouldn't answer a simple question, while Intense did. Each company has had their good and bad over the years. ZZP consistently in my personal experience let me down. I went with the Intense S1X cam as XP and S1X are similar in power etc.

    Not understanding why the pushrod change? Both XP and S1X work with stock length rods.

    130# springs and double roller chain would put you in a good spot to add rockers on top of the cam in the future if you had better flowing heads. Make sure you read up on the machining that needs to be done to the chamfer of the crank gear in order for it to fit your US engine vs the Aussie engine it was designed to fit.
    I drink..so consider that when reading my posts.

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  3. #3 Re: WTB Camshaft/pushrods/accessories (need advice) 
    GTX Level Member wstefan20's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Like you I had heard rumors and decided to call around and ensure the correct specs with the parts I was putting together. ZZP wouldn't answer a simple question, while Intense did. Each company has had their good and bad over the years. ZZP consistently in my personal experience let me down. I went with the Intense S1X cam as XP and S1X are similar in power etc.

    Not understanding why the pushrod change? Both XP and S1X work with stock length rods.


    130# springs and double roller chain would put you in a good spot to add rockers on top of the cam in the future if you had better flowing heads. Make sure you read up on the machining that needs to be done to the chamfer of the crank gear in order for it to fit your US engine vs the Aussie engine it was designed to fit.
    Thanks Bill! I was hoping you'd chime in. And that's good to hear! I'd rather not have to upgrade the pushrods or rockers before I have to.

    And good to know! I thought all you needed was the machined oil pump cover and the thicker gasket zzp sells, but if I can do any of that myself, I'd be open to bypassing them...
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  4. #4 Re: WTB Camshaft/pushrods/accessories (need advice) 
    GXP Level Member GTPpower's Avatar
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    I'm just going to reaffirm what Bill said. S1x and xp are basically the same cam. They are the best with stock heads. I've run the xp in a couple different cars.

    Both should be run with 130# springs. Pushrods aren't usually necessary. Stock is plenty strong and usually the correct length. The only way to know what length you need is to measure though. Get the crank gear chamfer corrected. And I still run the machines oil pump cover and thicker gasket. Also, you'll need milled ls style retainers and Viton valve seals.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  5. #5 Re: WTB Camshaft/pushrods/accessories (need advice) 
    Turbo is the way to go. BillBoost37's Avatar
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    Found the machining thread that I believe explains it all. I think it's a long read and well worth it.
    ClubGP Message Forum troubleshooting
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  6. #6 Re: WTB Camshaft/pushrods/accessories (need advice) 
    GXP Level Member suitercrew's Avatar
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    S1x sounds nicer though <3

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