hirdlej

iTrader: (31)

I am building a 6.0 that will have 243 heads on it and already has new LS6 springs installed. I don't want to have to sell the springs and upgrade if I don't have to. Has anyone in here ran a TR220 or TR224 with these springs without problems? Tbyrne says they're good for .600 lift where Lingenfelter says up to .580 lift. Then I search through posts on here where they say good up to only .550 lift. I want answers from real world people who have actually used these springs with a mid 220 ish duration and who holds the record for highest lift on these springs?

cam

iTrader: (9)

I wouldn't do it. Valve springs are the one thing that you should never cheap out on. Serious guys change them every season. My vote goes for Patriot Golds not only a great deal but best spring out there IMO

hirdlej

iTrader: (31)

I agree with you, but also I don't want something overly stiff or brittle that will require maintainence either. So on the flipside, knowing the gm springs are designed for long life, I like that idea as well.

cam

iTrader: (9)

The Patriots have proven themselves not brittle thats for sure. In fact i've never seen a bad post about them. if they go soft over time they will still be higher rates than then LS6 spring. I think they will last as long as the LS6 at higher than LS6 rates. Just my thoughts is all

sroach20

iTrader: (31)

plus if a patriot spring lets go youll have a backup to keep your valve from playing pinball inside your cylinder.

DANOZ28

iTrader: (1)

in a catalog the ls6 springs are only good up to 570 lift . any lift over that your taking your chances. upgraded springs are good insurance.

seawolf18

iTrader: (18)

I would at least throw a set of comp 918's on there. Just to be safe. Dont want to ruin your motor over a $150.00 set of springs.

kingsey

PBMFIsMe

iTrader: (5)

More like don't want to ruin your motor WITH a $150.00 set of springs. Haha

PRC Duals For The Win

Horsepwraddict

iTrader: (12)

a couple guys over on Performance trucks have run tr220's with them but i wouldn't recommend it. Im going to order the SDPC drop in springs when it comes time.

PREDATOR-Z

Yes you can do it, the seat pressures of the later models LS2/LS6/LS7 springs are enough to handle the lobes of TR224 (AT PROPER INSTALL HEIGHT).

seawolf18

iTrader: (18)

comp 918's can handle a little 224 cam

hirdlej

iTrader: (31)

Do you happen to know what the proper install height would be? Not trying to be a cheap *** here but this is one of those "wife budgeted" motors I'm building here. I am trying to convince her I can do it for under a grand. I paid $700 for the 6.0l. Sold parts from it, bought parts new. So far I've got $750 in the build and all I have left is a camshaft to buy. Hoping not to buy springs. Also shims are cheaper than springs so if I have to, so be it I'll be happy if I can get a nice street cam to put down 380RWHP and 380RWTQ before choosing a cam I want to know the limitations of the springs. Not being cheap here, I just need to avoid wifal (is that a word?) confrontation