installing beehive springs on GN1 heads

[whitehot1]

I was told that to install the beehive springs on GN1 heads that there is a cup that needs to be used with aluminum heads. Can someone explain how and what exactly that is please. I've never read anything about it before.

Thanks in advance

 

[blown okie]

any aluminum head needs at least a shim between the spring and the head to prevent the spring from "chewing" into the head, comp also sells hardened steel spring seats & seat cups to accomplish this, and they are considerably better than just a shim under the spring.

 

[whitehot1]

any aluminum head needs at least a shim between the spring and the head to prevent the spring from "chewing" into the head, comp also sells hardened steel spring seats & seat cups to accomplish this, and they are considerably better than just a shim under the spring.

Thank You, blown okie

I asked the vendor what i needed to install the beehive springs on the GN1's and he said, springs,retainers,locks,cups and that's what i ordered but i never thought to ask about what the cups were. lol

Thanks again