Head and cam..need opinions. and info
Head and cam..need opinions. and info Looking at MMS stage II heads and cam
MMS Stage II heads
Stage II upgrade 9.7:1
Titanium retainers
Manley valve springs
These are a 99+ 5.7 LS1 heads with the chambers enlarged a little for a boosted application (70-71cc). Valves are stainless 2.02/1.57.
MMS 218 Cam: 218/218 561/561 114ls
What kind of HP gains can I expect from this h/c setup...listed mods below
Current Mods: SLP Loudmouth,ASP Underdrive Pulley,Clear MTI lid,Holley Power Shot Air filter,FRA,!CAGS,Lous short stick,Motive 4.10 gears,TA girdle,SLP speedo corrector,Nitto 555R's (rear only),SLP line lock,BMR STB,LCA's,and SFC's,SLP Bellow,TB Coolant Bypass,Ported/Polished/Descreened MAF Ends, Raptor Performance shift light(Blue LED's), !pass wire, Express down, !auto headlights
Brian
MMS Stage II heads
Stage II upgrade 9.7:1
Titanium retainers
Manley valve springs
These are a 99+ 5.7 LS1 heads with the chambers enlarged a little for a boosted application (70-71cc). Valves are stainless 2.02/1.57.
MMS 218 Cam: 218/218 561/561 114ls
What kind of HP gains can I expect from this h/c setup...listed mods below
Current Mods: SLP Loudmouth,ASP Underdrive Pulley,Clear MTI lid,Holley Power Shot Air filter,FRA,!CAGS,Lous short stick,Motive 4.10 gears,TA girdle,SLP speedo corrector,Nitto 555R's (rear only),SLP line lock,BMR STB,LCA's,and SFC's,SLP Bellow,TB Coolant Bypass,Ported/Polished/Descreened MAF Ends, Raptor Performance shift light(Blue LED's), !pass wire, Express down, !auto headlights
Brian
Re: need opinions...h/c newbie yeah, eventually I'm going to go supercharger, but that's down the road a year or so.
Would this pass emissions n/a? Should I get hardened push rods? What gaskets, and headbolts should I get?
Would this pass emissions n/a? Should I get hardened push rods? What gaskets, and headbolts should I get?
TECH Resident
Joined: Apr 2003
Posts: 859
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From: here, ny
Re: need opinions...h/c newbie it 'should' pass, but thats a hit and miss item... longtubes on a stock motor will fail a visual test, but may pass a tailpipe test (even without cats)... it all depends on what they check in ur area... hardened pushrods couldn't hurt, and ask ur head builder on what they recommend for gaskets/bolts... just remember that with the lower compression/bigger cam, ur low end power will be lower until u get 'boosted'...
Re: need opinions...h/c newbie This is what MMS reccomended
-----------------------------------------
-Comp Cams 7955-16 pushrods 7.400" (for heads not milled more than .005")
-Stock GM MLS head gaskets used on 2001 Z06
-ARP head studs
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Where's the best place to get this stuff
-----------------------------------------
-Comp Cams 7955-16 pushrods 7.400" (for heads not milled more than .005")
-Stock GM MLS head gaskets used on 2001 Z06
-ARP head studs
------------------------------------------
Where's the best place to get this stuff
Re: need opinions...h/c newbie Anyone have any suggestions as to where to get the stuff listed above...
Also since it's gonna be a while till I can get a SC I'm thinkin about going with a different Cam...Any reccomendations?
Also since it's gonna be a while till I can get a SC I'm thinkin about going with a different Cam...Any reccomendations?
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From: kuwait
Re: need opinions...h/c newbie what is the size valve's? if you don't need it for supercharger the heads S2 don't need like this cam's (218/218 561/561 114ls) there's many cam's you can chice it & you'll be better in perfor & hp's, call the MMS and ask about best cam for this heads. check this out with FMS & TR.
For example:
226"/226" .591"/.591" 112LSA
224"/224" .566"/.566" 112LSA
226"/226" .575"/.575" 112LSA
Good luck
For example:
226"/226" .591"/.591" 112LSA
224"/224" .566"/.566" 112LSA
226"/226" .575"/.575" 112LSA
Good luck
