ian08

as the title states which tool works for removing the valve springs on the ls7 head i did some searching and did not come up with a answer does not matter to me if it does 1 at a time or both thanks does the comp cams 5462 work

amdoverclocker

Any LS tool will work. The 5462 will work for the LS7.

CHIWS6

I have that spring compressor Ian, u can borrow it if you like

ian08

okay thanks guys i was getting conflicting results cause of the offset rockers

ian08

thanks bud u are close and thats nice of u but im just going to buy one my z06 is paid off and not going anywhere and this wont be the last time i pull the springs to check for guide wear most likely be a yearly thing

Mark2009

I've tried them all. None will work properly.... the LS7 is 1.7 ratio vs 1.6. You risk damaging the valve stems w/a 1.6 tool.

Best bet is old school crank style with all corners & sharp edges carefully hand chamfered to prevent the spring from being nicked, dented, or scratched.

erick_e

I got one of these refurbished from Jegs on eBay.

http://www.lsxtv.com/news/new-produc...ng-compressor/

LSM Racing Products SC-167 - LSM LS-Series Valve Spring

Works great..

Mark2009

Sounds like they are on the right track

double06

With a air compressor you can change the spring in less than an hour assuming you have them shimmed right to begin with.

Hib Halverson

That's what I use, too. Quality tool, for sure. Unfortunately, supply is a bit tight right now but Summit Racing has some in stock.

whitehooptie

Mark, doesn't the rocker arm itself determine the ratio? If so, wouldn't the basic casting be the same for the rocker base to valve relation?

Undy

Here's mine in use. It worked fine.

Mark2009

No.

Mark2009

edmundu

I found one made by a LS1 forum member. Works as advertised, nice tool.

Here is the link: http://ls1tech.com/forums/tools-fabr...ml#post2873141

Undy

Not enough "****" to cause a problem. It's just unloading the locks anyway. It actually worked quite well. As soon as the retainer went down my magnet fished the locks right out. There was no side loading on the stems at all.

Mark2009

I had one, didn't like the way it loaded up the retainer, so I sold it. YMMV.

Also tried one of thr LS1Tech versions. It's in the junkbox now (same issue -- wrong ratio). You have to look close at the retainer when compressing the spring to see the problem.

wjnjr

Any pros care to say what they use?

Mark2009

Well it appears clear that this one is the only one that works correctly on the LS7, and mostly foolproof, so it is clearly the way to go.

2nd, not all pros are really pros so I would caution against unconditionally worshipping at their feet.

wjnjr

No worshipping going on here.

That said, I have always received better advice on tools from guys who use them every day to make a living, than from internet experts.

Just sayin'