always faster

Ok with the help of member in my last thread about refreshing my valvetrain, i ve decided to go with these rocker:

Comp pro mag 1.6 SA
http://store.summitracing.com/partde...5&autoview=sku
I know that the rocker comes with the polylocks.

I also want this spring kit:
http://store.summitracing.com/partde...5&autoview=sku
LT4 valves spring kit

My questions:
Does this spring kit comes with the retainer and locks or i must buy them separetly?

Thank you

Mtrhds94Z

No it's just 16 springs..
You need:
LT4 SB Chevy Valve Spring Cap Kit 12495492 [16/ 10212808's]
LT4 SB Chevy Valve Spring Keys Kit 12495503 [32/ 24503856's]

always faster

Thanks a lot

Since you are there ,is the part number for the rocker is the good one?

And do you have by any chnace the part number of the valve seal? I will also changed while im gonna be there.

Thank you again im pretty noob in the vlavetrain

Mtrhds94Z

LT4 SB Chevy Valve Spring Shim 10212809
LT4 SB Chevy Valve Stem Seal [intake] 10212810
LT4 SB Chevy Valve Stem Seal[exhaust] 12564852 red

I have the Crane Gold SA rockers so can't help you re the Comps..

always faster

Well i was talking about the valve stem seal for the lt1 valve since i got the stock one.

Also i dont need shim because im keepingmy stock cam and also will be reusing my stock spring seat.(correct me if im wrong)

always faster

Ok with the help of the search button i ve found that i would need to maybe shim the spring.

So is it a good model:
http://store.summitracing.com/partde...5&autoview=sku

And even if i have found that i will probably need to shim i still dont understand what to do.I understand how to install the valve spring height...

but what do i do after?

From shoebox sites:
Get the recommended height values for the spring pressure you need from your manufacturer or seller. Use shims if you need them to get the correct height.

Can someone explain?

Thanks

always faster

Still need to know if its the a good model:

http://store.summitracing.com/partde...5&autoview=sku

Also i need information.Can someone explain me what to do and what number(value) should i get.Im totally lost.

With all my search on ths board i ve understand that i must measure the spring height but...after that i will find out this info what do i do

Thank you

Mtrhds94Z

The LT4 springs /retainers/ locks can go on with no fuss.. just put them on as is..
Also, I don't have the LT1 valve seal p/n's ..
You can use the stock LT1 shims/seats, or get the LT4 shims .. I believe they are the same thickness... either one will work OK..
When I did mine, I left the LT1 shim/seats in there, as I didn't need to change the valve seals, so I left the LT1 shims on..