Thoughts on compression/build - ZR-1 Net Registry Forums

cuisinartvette · 08-31-2007

Let me pick your collective brains on a build...

First off Ive "heard" (yeah, I know...) that the LT5 is not a true 11:1 motor, is really closer to 10:1. NOW-If thats the case.....

-Options
1) Mill heads
2)Custom piston
3)What are the stock CCs on these?
4)Would add a slight bit of cam timing to take advantage of porting. Not 100% on this but heavily leaning towards it. Spring pressures may only increase a slight bit so longevity shouldnt be a problem.
5)Longer/lighter rods....
6)Wont be stroked

Now, for a real zinger....

How difficult would it be to create a solid type lifter, how would that work in terms to adjustment, lash ramps, etc??? Dont Porsche and Ferarri use somethign like this?

Kind of know the direction I want to go, just wanted some input..It never ends.
I promise Im sober posting this

08-31-2007	#1
cuisinartvette Join Date: Aug 2005 Location: San Fernando Valley, CA. Posts: 896	Thoughts on compression/build Let me pick your collective brains on a build... First off Ive "heard" (yeah, I know...) that the LT5 is not a true 11:1 motor, is really closer to 10:1. NOW-If thats the case..... -Options 1) Mill heads 2)Custom piston 3)What are the stock CCs on these? 4)Would add a slight bit of cam timing to take advantage of porting. Not 100% on this but heavily leaning towards it. Spring pressures may only increase a slight bit so longevity shouldnt be a problem. 5)Longer/lighter rods.... 6)Wont be stroked Now, for a real zinger.... How difficult would it be to create a solid type lifter, how would that work in terms to adjustment, lash ramps, etc??? Dont Porsche and Ferarri use somethign like this? Kind of know the direction I want to go, just wanted some input..It never ends. I promise Im sober posting this __________________ 1990 ZR1, 142,000 miles-Black on black 4.09's Haibeck chip, 3"exh, K&N, meth inj.