GM High Tech article: MS4 and PRC heads= 129HP
11-12-2006, 09:47 AM
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You DO NOT need to flycut with the MS4 and the PRC Stage 1 LS6 heads. Although if you do end up flycutting we could set you up with a stage 2.5 cylinder head that will perform just a little better with the bigger valves.
Again, the MS4 and PRC stage 1 heads bolt on with no modification to the pistons for clearance. It is a direct bolt on.
The PRC stage 1 heads are THE best budget head on the market, this heads and cam combo is a proven setup that is garunteed to give you the ground pounding power everyone is looking for. If you need any information or have any questions feel free to post up or pm!!
Zach
Again, the MS4 and PRC stage 1 heads bolt on with no modification to the pistons for clearance. It is a direct bolt on.
The PRC stage 1 heads are THE best budget head on the market, this heads and cam combo is a proven setup that is garunteed to give you the ground pounding power everyone is looking for. If you need any information or have any questions feel free to post up or pm!!
Zach
11-12-2006, 11:05 AM
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Originally Posted by Red99TA
You don't have to take the pistons out to flycut them. I may be wrong but I think the block needs to be out so you can fit the drill rig on top of cylinders 7 and 8.
11-12-2006, 02:19 PM
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Originally Posted by bjamick
Hey zach, i was looking at the PRC stage 1 ls6 heads and cam combo but it only shows the MS3? Can we get the MS4 with it for the same price?
Yeah, I can't chooes the MS4, it's not listed. how can i make the order? How much labor is it to flycut the pistons? take them out right? I read the article and its a lot of great work gentlemen, kudos.....kudos.
Jerry
11-12-2006, 05:26 PM
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Texas Speed, with the new ms4 how harsh is the cam on the rest of the valve train. How often would someone need to change dual springs if ever? What rpm to they make power up to? What lsa would you recomend for a 4000 stall auto with 373s? Thanks.
11-12-2006, 05:32 PM
#27
Originally Posted by kornfreak_401
Yeah, I can't chooes the MS4, it's not listed. how can i make the order? How much labor is it to flycut the pistons? take them out right? I read the article and its a lot of great work gentlemen, kudos.....kudos.
Jerry
Jerry
No no no... You fly cut pistons while they are still installed in the block. Also it can be done when it is in the car if the engine is not on a stand already. Hardest part is probably pulling the heads off.
11-12-2006, 06:31 PM
#28
i would like to know how this head/cam combo would stack up against the same head with a T-rex cam????? this is the way i'm leaning towards when the time comes.
also, how much harder or easier would this cam be on the valvetrain vs the T-rex cam?
thanks,
Dave
also, how much harder or easier would this cam be on the valvetrain vs the T-rex cam?
thanks,
Dave
11-12-2006, 06:57 PM
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the Magic Stick 4 specs are: 239/242, .649"/.609" 111 lsa 2300-6800 RPM Power Band
the T-rex specs are 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band
i think the the t-rex is a big cube motor stick and way to much for a stock head ls1. plus it's not very streetable and the power band is not that impressive.
conneticut, thanks for the pic! how'd the istall go? any tips you want to share?
Jerry
the T-rex specs are 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band
i think the the t-rex is a big cube motor stick and way to much for a stock head ls1. plus it's not very streetable and the power band is not that impressive.
conneticut, thanks for the pic! how'd the istall go? any tips you want to share?
Jerry
11-12-2006, 08:57 PM
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Originally Posted by kornfreak_401
the Magic Stick 4 specs are: 239/242, .649"/.609" 111 lsa 2300-6800 RPM Power Band
the T-rex specs are 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band
i think the the t-rex is a big cube motor stick and way to much for a stock head ls1. plus it's not very streetable and the power band is not that impressive.
conneticut, thanks for the pic! how'd the istall go? any tips you want to share?
Jerry
the T-rex specs are 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band
i think the the t-rex is a big cube motor stick and way to much for a stock head ls1. plus it's not very streetable and the power band is not that impressive.
conneticut, thanks for the pic! how'd the istall go? any tips you want to share?
Jerry
11-12-2006, 10:55 PM
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Originally Posted by bjamick
Hey zach, i was looking at the PRC stage 1 ls6 heads and cam combo but it only shows the MS3? Can we get the MS4 with it for the same price?
11-12-2006, 10:57 PM
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Originally Posted by kornfreak_401
Yeah, I can't chooes the MS4, it's not listed. how can i make the order? How much labor is it to flycut the pistons? take them out right? I read the article and its a lot of great work gentlemen, kudos.....kudos.
Jerry
Jerry
11-13-2006, 12:05 AM
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rickyracer, what kind of set up did you go with? just cam or heads too? let us know what's up.
Hey EZ, what's your set up? I think i almost got my down....
Hey EZ, what's your set up? I think i almost got my down....
11-13-2006, 06:51 AM
#37
Read the same article the other night, very good looking setup, especially since you do NOT have to flycut the pistons! Just curious, you guys over at TSP have any actual RWP gains on that setup? I figure you can knock off 15% +/- from the crank numbers published in GMHTP, but I'd like some real numbers if you had any 
11-13-2006, 01:24 PM
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Originally Posted by VTC_WS6
Read the same article the other night, very good looking setup, especially since you do NOT have to flycut the pistons! Just curious, you guys over at TSP have any actual RWP gains on that setup? I figure you can knock off 15% +/- from the crank numbers published in GMHTP, but I'd like some real numbers if you had any