Valve springs 500 EFI
03-26-2010 | 08:38 PM
#2
VIP Member
Joined: Jul 2009
Posts: 528
Likes: 0
Take a look at Pac Spring. Anything that is a new high silicon pacalloy process spring will last forever. I recently used a set of Manley Nextec on Hp500 heads. They are made by PSI Spring, as are Isky springs.
03-27-2010 | 09:20 AM
#5
Rob
Joined: Aug 2001
Posts: 21,637
Likes: 9
From: Ms
03-28-2010 | 04:17 PM
#7
Thread Starter
"Unregistered Gun"
Joined: Dec 2005
Posts: 1,422
Likes: 225
From: Paducah, Ky
Whats the diffrence between the 8205, 8205 PLUS, and 8005sp? If my leak down shows good should I still replace them since it has 360 Hours?
Im going to give him a call after I do a leak down test!
Im going to give him a call after I do a leak down test!
03-28-2010 | 09:02 PM
#8
Registered
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Leakdown really doesnt tell you whether your valve springs are weak or not. I would replace them at 360 hours.
