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Cam and heads

This is a discussion on Cam and heads within the Internal Engine forums, part of the LSx Technical Help Section category; Ok, i don't wanna break the bank on the heads so im thinking of just picking up ls6 heads and ...

  1. #1
    Member 1998 T/A's Avatar
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    Cam and heads

    Ok, i don't wanna break the bank on the heads so im thinking of just picking up ls6 heads and getting them ported and what not, maybe even upgrading the rocker arms and valve springs. what Cam would be best with these heads and how much HP to the wheels can i expect with a good tune. supporting mods are Pacesetter LT's, x pipe with flowmaster, FAST 90mm intake and TB.

    thanks

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    cutting and welding mark21742's Avatar
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    hugger orange
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    I ported and polished the hell out my stock 241 heads. I picked up my cam off of ebay $110 + $17 shipping. hr284 grind (copy) 284/292 = 220/224 @.50 .570/.580 lift 112lsa.
    you have choice 112,114,116lsa.
    It takes some tuning, but love it.
    can't tell you my gains yet(i hope to get on a dyno soon)....but it drives near stock with lots more power.
    valve springs are a must for any cam upgrade.
    with the fast intake and tb you should show more gains than me

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    Member 1998 T/A's Avatar
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    im stupid when it comes to the internal parts of our engines. sad i know. i want a big cam like .600 / .608 would i be able to get away with ported and polished stock heads or would it be best to port and polish LS6 heads. sorry if this sounds repetative, lol

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    cutting and welding mark21742's Avatar
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    hugger orange
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    make any choices, or have any progress?

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    Member c5z28's Avatar
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    Sounds like someone wants an ms4.

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by c5z28 View Post
    Sounds like someone wants an ms4.
    what are the specs on an ms4 anyway, i keep seeing it pop up in treads

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    Quote Originally Posted by mark21742 View Post
    what are the specs on an ms4 anyway, i keep seeing it pop up in treads
    Magic Stick V.4 239/242, .649"/.609" Camshaft With Your Choice of Lobe Seperation (111 LSA Standard)


    got that from texas speed

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by pjeff7 View Post
    Magic Stick V.4 239/242, .649"/.609" Camshaft With Your Choice of Lobe Seperation (111 LSA Standard)


    got that from texas speed
    damn sounds pretty mean, that a hell of an intake lift

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    sorry i havent been able to get on the PC....as of right now im gonna port the stock heads not sure on the cam, i watched some videos on youtube and im growing fond of the MS4...so we'll see what happens. the problem is i cant have my car under the knife for too long, its my dd so im gonna search for heads that have already been ported or buy another set of ls1 heads and port those. obviously then sell the old heads.

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    Member c5z28's Avatar
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    AH HA I called it So your looking for a little over 400hp then huh? It would be interesting to see what ported heads do to it.

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    ya i figure with ported heads and a good tune i'll be looking at 430, give or take...its my dd as of now plus im gonna be working on a 88 Iroc this summer so i'll be able to play with that. pending on how everything goes with work and what not if i have more money to blow im gonna put NOS in it, probably a wet shot.

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    cutting and welding mark21742's Avatar
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    if you port your own heads watchout for this spot where the coolant passage dips around the exhaust valve spring seat

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    Member 1998 T/A's Avatar
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    ya im not sure if im gonna do it myself, not really skilled...anyone know of a place where i can send them off to get done?

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by 1998 T/A View Post
    ya im not sure if im gonna do it myself, not really skilled...anyone know of a place where i can send them off to get done?
    its really not that hard, just takes some time and the right bits

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Quote Originally Posted by mark21742 View Post
    damn sounds pretty mean, that a hell of an intake lift
    Yeah, get ready to replace your dual valve springs every 8k miles. If your wanting just all out power without much regard to driveabiliy, you'll like the Trex better than the MS4. From experience, stick to lower lift and longer duration.
    2000 Z28: Accufab 4150, Vic Jr. 150 shot, Patriot stg 2 heads, big cam, FLT Stg VI 4L60, S60 rear. Waaay more stuff to list. 3100 LBS.

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by UTVols98 View Post
    Yeah, get ready to replace your dual valve springs every 8k miles. If your wanting just all out power without much regard to driveabiliy, you'll like the Trex better than the MS4. From experience, stick to lower lift and longer duration.
    I've allways been told to stay under .600 lift for a good low maintainece DD.
    that's why I went .570/.580
    Last edited by mark21742; 02-16-2009 at 02:30 AM. Reason: added a line

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    id feel more comfortable leaving it to someone who knows how to port the heads...pussy i know haha

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Look at the for sale section on here and LS1tech. Their is always someone selling used ported heads on there for around 7-800.

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    the thing is i might be picking up a jeep or something for the winter months which ultimately means my t/a will be a summer car so im still battling on the cam situation although im content with a 400+ horsepower street car, not looking to turn it into a 10 second car. although that would be badass

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