Valve springs & retainers changes over the years

Upetr

The 2009-2013/01 model used the same valve spring retainers on the intake and exhaust side (part number 13209-AC700). The intake and exhaust uses different springs.

Thereafter, I know that they changed the exhaust spring retainers and spring (retainer part number 13209-1KC0A).

Do the later engines use the 13209-1KC0A on the intake too or do they use the 13209-AC700 like the early engines.

Spooler

I do not know. I know when I had an engine built that my old springs, keeper, and retainers had to be used on the newer heads for my JWT C2 exhaust cam upgrade.