Thread: XP cam and topswap on Ported manifolds?

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  1. #1 XP cam and topswap on Ported manifolds? 
    GTP Level Member BlackGT97's Avatar
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    As you probably read in my other threads of questions, I recently top swapped and cammed (xp) my GT. Well the SD headers are out of stock atm, and am curious if i can just port the front manifold myself and do a u-bend delete and be safe until the Headers come back into stock. I'm running the stock pulley by the way. I read on another forum that it should be alright but i would like to double check with you guys first.
    1997 Grand prix GT Black Coupe- The beater
    1998 Grand prix GT Black coupe- Top swapped, XP cam
    2008 Grand prix Midnight blue- The slow but nice car
    1999 Chevrolet Silverado red ext. Cab
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  2. #2 Re: XP cam and topswap on Ported manifolds? 
    I live here. MoarkatsINmuhtrailer's Avatar
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    yeah you should be fine, just dont rag on it
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  3. #3 Re: XP cam and topswap on Ported manifolds? 
    GXP Level Member GTPpower's Avatar
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    Beat the piss out of it. You'll be fine.


    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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  4. #4 Re: XP cam and topswap on Ported manifolds? 
    GTP Level Member BlackGT97's Avatar
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    roger that
    1997 Grand prix GT Black Coupe- The beater
    1998 Grand prix GT Black coupe- Top swapped, XP cam
    2008 Grand prix Midnight blue- The slow but nice car
    1999 Chevrolet Silverado red ext. Cab
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  5. #5 Re: XP cam and topswap on Ported manifolds? 
    Donating Users GMR Badass's Avatar
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    Don't even waste your time porting the manifolds. So much time and effort into something you're only going to change a soon as SD headers are in stock. Just keep your foot out of it until you get a set of headers on it. Work smarter not harder.

    Edit...stock pulley...even with stock manifold you're not going to hurt it.
    1999 GTP 2dr - Whipple 537whp.....for now
    1998 GTP 4dr - ST2, Cartuning PT61, IC - SOLD
    1999 GTP 2dr - SIX, GenV, Headers, TEP Trans, E85 - SOLD
    1997 GTP 4dr - 3.4, 1.9's, 3" DP, P-log - SOLD
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  6. #6 Re: XP cam and topswap on Ported manifolds? 
    DUI BABY Bio248's Avatar
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    hell, just leave the manifolds. get a downpipe and run it as a torque monster.
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  7. #7 Re: XP cam and topswap on Ported manifolds? 
    GTX Level Member dbextreme's Avatar
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    Are SD headers like AR-15's now???? LOL I have a brand new set in the box I'll sale for $1,200...

    What happened? I ordered mine the first of Feb and they cost $240 shipped... Then they price doubled then poof they are gone... Metal shortage? Importing? WTH??? I know they didn't have a run on them.
    1999 GPGT - L26, Ported Top Swap, XP Cam, 3.2 MPS, 42.5#, N*, LQ4, SD Headers, Double Roller, TEP Race Trans w/Stand alone Cooler, Precision Industries 3000RPM Stall, 75 Shot Nitrous Express Proton Kit w/Purge, 3" Dual Borla Pro XS, Corsa Dual 3.5 Tips, 5% Tint
    1995 Firebird Formula - Under the Knife
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  8. #8 Re: XP cam and topswap on Ported manifolds? 
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    Quote Originally Posted by dbextreme View Post
    Are SD headers like AR-15's now???? LOL I have a brand new set in the box I'll sale for $1,200...

    What happened? I ordered mine the first of Feb and they cost $240 shipped... Then they price doubled then poof they are gone... Metal shortage? Importing? WTH??? I know they didn't have a run on them.
    I was actually planning on ordering a set next Friday, guess I'm gonna hold off for a while
    1999 gtp coupe... P&P heads, lim, and sc, comp vs cam, intake, dp and ubend
    2003 ford ranger fx4 level II- twin stick
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  9. #9 Re: XP cam and topswap on Ported manifolds? 
    Moderator dsmuts's Avatar
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    Go with ssac if they have them in stock.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  10. #10 Re: XP cam and topswap on Ported manifolds? 
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    I placed a order for the SD headers Feb 8 my shipping info was voided on ups gave them a call my SD headers are out of stock wont be shipped to my door until March 8 at the lastest really put the brakes to the progress smh

    Sent from my SGH-T989 using Tapatalk 2
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  11. #11 Re: XP cam and topswap on Ported manifolds? 
    GXP Level Member darkhorizon's Avatar
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    Headers are fairly overrated imo.
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  12. #12 Re: XP cam and topswap on Ported manifolds? 
    DUI BABY Bio248's Avatar
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    Quote Originally Posted by darkhorizon View Post
    Headers are fairly overrated imo.
    i'm in this boat.
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  13. #13 Re: XP cam and topswap on Ported manifolds? 
    GXP Level Member GTPpower's Avatar
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    I completely agree with that statement as well.


    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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  14. #14 Re: XP cam and topswap on Ported manifolds? 
    DUI BABY Bio248's Avatar
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    there are several reasons why i'd want to put together a downpipe, cam, heads car, but that's neither here nor there.
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