Valve springs for boosted LSX ?
#41
Heavy parts kill everything. We have a certain LS7 head here with 144g intake valves! I won't use them. Everyone is giving good advice and like Shane says the ETP and heavy stuff needs more spring pressure to work right.
I like the Manleys and the K800 that Brian showed us too for their respective lift ranges.
I like the Manleys and the K800 that Brian showed us too for their respective lift ranges.
#42
not to high jack this thread i have the LSX-LS7 gmpp heads ti intake sd ex on a 427 LSX boosted never ran yet as im wanting diff springs than the ones the heads come with what would be the best spring for this combo be, cam is a TS ls7 grind .656" lift
hyd caddy lifters if i remember
hyd caddy lifters if i remember
#43
Also, not sure why more people don't use the PSI CT1225's. They are a bit pricey but their low rate is perfect for high seat pressure without getting crazy over the nose.
#45
not to high jack this thread i have the LSX-LS7 gmpp heads ti intake sd ex on a 427 LSX boosted never ran yet as im wanting diff springs than the ones the heads come with what would be the best spring for this combo be, cam is a TS ls7 grind .656" lift
hyd caddy lifters if i remember
hyd caddy lifters if i remember
A lot of people are running cams so agreesive 500lbs is not enough to control the valves at high RPMs.
#47
We have the reg normal Morels that use the OEM lifter cups if you want those.
#49