militant_x

iTrader: (1)

Was installing the springs to go with my hot cam today and I am little confused as to what I am supposed to do with the supplied shims. The spring seats that are currently on look very different. I initally thought the shims were supposed to go over these factory spring seats, but they do not fit this way.

The engine is a 2003 Lq9 6.0L from an escalade, the cam is the ls1 hot cam, the springs are the blue ls6, and the shims cam with the kit.

any ideas?

PREDATOR-Z

That cam doesn't need any shims. IIRC it is only .525 lifts

Grimes

iTrader: (3)

Am I mistaken, or are you supposed to put the shims under the seat?

militant_x

iTrader: (1)

so will it be okay to just install the springs without the shims? Why did they come with the kit? or were they not intended to be used with the heads I have.

PREDATOR-Z

Nothing to do with the heads, it has to do with seat pressure for the springs.
If you had a cam that has more than .540 lifts, then you might wanna shim.
.525 lifts will be handled by those springs easily (1.7 rocker arm ratio)

militant_x

iTrader: (1)

thank you! out of curiosity, say I had a cam with more than .540 lift... where would the shims go? under the seats as grimes suggested?

PREDATOR-Z

That depends on the seat shape and the seals used.
Some go over, and some under.

cantdrv65

iTrader: (3)

Are you sure those are shims at all or are they the actual seats designed for use with the springs you have. Id defintely find out first.