MS4 in a stock LQ9
#5
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i was told by tsp that the cam would work in the lq9 long block. i got the ms4 patriot dual springs and 7.425 pushrods that im throwing in my lq9 swapped 98z next month after it goes through inspection
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#8
#9
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I am not an authority on LS heads, but I was not aware that the extra chamber volume on the 317 heads was achieved by a taller chamber with a higher valve location than the ls1 heads. I thought the difference in volume was due to a more open chamber and the valves were in the same location. Could any one clear this up?
Thanks again,
Darren
Thanks again,
Darren
Last edited by darren s; 01-21-2010 at 05:51 AM.
#10
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I am not an authority on LS heads, but I was not aware that the extra chamber volume on the 317 heads was achieved by a taller chamber with a higher valve location than the ls1 heads. I thought the difference in volume was due to a more open chamber and the valves were in the same location. Could any one clear this up?
Thanks again,
Darren
Thanks again,
Darren
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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#11
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Darren
#12
I'd atleast be ready to pull the heads anyway to mill them down alittle...even if it means valve relifes to get the compression up some... I don't see why it wouldn't drop right in, but why leave power potential on the table with the stock comp ratio
#14
On The Tree
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The 2.165 intake valve would leave you with less ptv than the 2.00 intake valve in the 317's
#17
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Your valve drop with the LQ9 & 317 castings will allow the MS4 to clear no problem
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
#20
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You might want to think about upgrading your valve train. A LS2 timing chain and PRC springs with good pushrods might be good insurance. If your going to pull the heads you might just as well.....jeez.... here we go...............