Nissan 370Z Forum - Valve springs & retainers changes over the years

Nissan 370Z Forum (http://www.the370z.com/)

- Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)

- - Valve springs & retainers changes over the years (http://www.the370z.com/engine-drivetrain/138094-valve-springs-retainers-changes-over-years.html)

Valve springs & retainers changes over the years

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.

Quote:

Originally Posted by Upetr (Post 4028792)

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.