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?

 

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

 

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

 

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.

 

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)

 

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?

 

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

 

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.