valve spring retainers

[Paddywhack]

Hey all, does anybody know why the valve spring retainers on the exhaust valves are a 2 piece assembly which can spin amd the intake retainers are solid? Cant find the two piece retainers, all I see are solid. Any info is appreciated. Oh, its a 86 L98, with cast iron heads.

 

[vetteoz]

does anybody know why the valve spring retainers on the exhaust valves are a 2 piece assembly which can spin amd the intake retainers are solid?

They are rotators to turn the exh valve.
When fitting aftermarket springs you delete them , run regular retainers and shim spring to correct height to compensate for the larger thickness retainer you removed.

 

[Paddywhack]

OK, Thanks...I've been able to only find the solid replacement ones