LS1 Valve Spring Pressure?

LNorton · 01-28-2009, 08:51 PM

We run the same spring as the LS1, except at a shorter install height. I am curious as to how much spring pressure those guys are running.

I would like it to be able to spin 72-7300rpm. Installed height is 1.750. Lift is .485/.495

Any ideas?

Jim Hanig · 01-28-2009, 09:19 PM

Les I would think 165 180 seat and 380 400 open. J Hanig

01-28-2009, 08:51 PM	#1
LNorton Senior Member Join Date: Apr 2004 Location: RacerTees.com Posts: 505 Likes: 0 Liked 4 Times in 2 Posts	LS1 Valve Spring Pressure? We run the same spring as the LS1, except at a shorter install height. I am curious as to how much spring pressure those guys are running. I would like it to be able to spin 72-7300rpm. Installed height is 1.750. Lift is .485/.495 Any ideas? __________________ Lee Norton - N229 STK IHRA H/FIA - NHRA O/SA RacerTees.com

01-28-2009, 09:19 PM	#2
Jim Hanig Senior Member Join Date: Aug 2006 Location: Pukwana SD Posts: 860 Likes: 554 Liked 99 Times in 49 Posts	Re: LS1 Valve Spring Pressure? Les I would think 165 180 seat and 380 400 open. J Hanig