PerformanceTrucks.net Forums

PerformanceTrucks.net Forums (https://www.performancetrucks.net/forums/)
-   GM Engine & Exhaust Performance (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/)
-   -   LS9 valve springs (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/ls9-valve-springs-528379/)

ullose272 04-12-2014 11:01 AM
LS9 valve springs
 
looking at putting a mild performance cam in my 2500hd (lq4). the LS9 spring look appealing. can i use stock retainers and locks? anyone have experience with them?

1dirtybird 04-12-2014 02:50 PM
Run them with a lot of low lift setups, using stock seals, retainers and keepers. They work great and are very inexpensive.

Dirty

Thatdavidkid 04-20-2014 08:09 PM
I was told by the machine shop that is helping me on my truck that ls9 valve springs on cathedral port heads coil bind at very (relatively speaking) low lift. Something with the installed height being a lot taller on the newer heads.

1dirtybird 04-25-2014 12:02 AM
Originally Posted by Thatdavidkid (Post 5211275)
I was told by the machine shop that is helping me on my truck that ls9 valve springs on cathedral port heads coil bind at very (relatively speaking) low lift. Something with the installed height being a lot taller on the newer heads.
They're good for unded .550 lift on older stuff and .570 on the newer rectangler j eads


All times are GMT -5. The time now is 07:13 PM.


© 2024 MH Sub I, LLC dba Internet Brands