Thread: Intense stage 2 heads?

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  1. #1 Intense stage 2 heads? 
    GTX Level Member crbquist's Avatar
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    Anyone have any feedback on them? Just gathering info at this point. I know most will say just have a machine shop port my heads, but I don't know of any shops around my location that have experience in 3800 head porting.
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  2. #2 Re: Intense stage 2 heads? 
    GT Level Member 88formula's Avatar
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    How far are you looking to take your build? I know of a great guide that shows how to DIY polish for 15% flow gains.
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  3. #3  
    GTX Level Member crbquist's Avatar
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    Already have the cam. Now just looking for some mild heads to run along with it and also am planning an IC.
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  4. #4 Re: Intense stage 2 heads? 
    GT Level Member torq455's Avatar
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    Intense is about done with my S2 heads. Though, I'm having the larger, I-1.90 and E-1.57, Manley severe duty SS valves installed. I should get them in about a week.
    2002 GTP: K&N, 3.2 pulley, flipped mounts. ZZP SS headers, 180 stat, NGK TR6's, MSD wires, Reptile ported TB, ported S/C, ported LIM, Intense Stage II heads with larger Manley severe duty SS valves, Yella Terra 1.9 full roller rockers, LS6 springs, Racetronix fuel pump re-wire, Oil pressure "kit", JMB FWI. Mustang dynoed at 240 WHP, 272 WTQ.
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  5. #5 Re: Intense stage 2 heads? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    As I said is another thread of yours, the shop does not need to have ton of experience in porting heads for only 3800 motors.

    A mild port is a mild port.

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  6. #6 Re: Intense stage 2 heads? 
    DUI BABY Bio248's Avatar
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    do not pay vendor fees for heads.

    find a local machine shop for porting, polishing, decking, cleaning, assembly. they will be WAY better for the price.
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  7. #7  
    GTX Level Member crbquist's Avatar
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    Quote Originally Posted by Bio248 View Post
    do not pay vendor fees for heads.

    find a local machine shop for porting, polishing, decking, cleaning, assembly. they will be WAY better for the price.
    You think any local machine shop can work 3800 heads?
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  8. #8 Re: Intense stage 2 heads? 
    GrandPrix Junkie ItHurtz's Avatar
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    there isnt anything special about a 3800 head. its a head, same as any other vehicle. if they port they port all
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  9. #9 Re: Intense stage 2 heads? 
    DUI BABY Bio248's Avatar
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    well, you can mess it up if you do something wrong.

    that being said, it's still just a head. give them a cam profile to work with and what your plans are with it. tell them what car it is from and that you're boosted, etc.
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  10. #10  
    GTX Level Member crbquist's Avatar
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    I'm looking to retain 105 springs and run titanium retainers. The cam is an s1x. So pretty much a mild port and polish haha. Shooting for 330-340whp inter cooled on 93 octane.
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  11. #11 Re: Intense stage 2 heads? 
    DUI BABY Bio248's Avatar
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    literally any shop that does head work will and can do that for the price of cheap.
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  12. #12  
    GTX Level Member crbquist's Avatar
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    Quote Originally Posted by Bio248 View Post
    literally any shop that does head work will and can do that for the price of cheap.
    Good to know. I'm picking up a set of low mileage L32 heads off an 04 gtp next week. There is an automotive machine shop a couple towns over from me who I am going to reach out to.
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  13. #13 Re: Intense stage 2 heads? 
    The Blue One blueguy's Avatar
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    350~ WHP with an IC/heads/cam will be cake with a solid dialed in tune on 93+

    Headwork really opens up these cars IMO, especially a lightweight valvetrain.

    With ported heads though, think about going with a larger cam to utilize all that flow.
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  14. #14  
    GTX Level Member crbquist's Avatar
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    Quote Originally Posted by blueguy91 View Post
    350~ WHP with an IC/heads/cam will be cake with a solid dialed in tune on 93+

    Headwork really opens up these cars IMO, especially a lightweight valvetrain.

    With ported heads though, think about going with a larger cam to utilize all that flow.
    I just did my cam swap last year and I really like the s1x.. Good idle, good on gas, not too obnoxious. Could I have the heads really opened up to flow like stage 3s and run bigger valves while still retaining 105 springs? I run a stock timing chain.
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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  15. #15 Re: Intense stage 2 heads? 
    GXP Level Member darkhorizon's Avatar
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    I was largely unimpressed with a set of IS3 heads I looked at purchasing for my turbo car. The ports were basically just cleaned up stock ones with no stem or runner work.
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