Quote Originally Posted by Vvvtec View Post
I've been doing some reading on building my head up. And I seem to keep coming across the notion that titanium retainers tend to wear quicker than reguler retainers.

Is this true? And is it a real issue?
It is true & it is an issue on road engines that are expected to go past 100,000km
It's not an issue for race engines as they are pulled down regularly & freshened up.
In this case, valve springs, valve spring retainers, rings, bearings etc are all regarded as replacable wear items.
if you're going to use Ti retainers on a road car, be sure to use a set that locks into the top of the spring.
This will mitigate some of the risk, but not eliminate it.
If the car isn't going to see the circuit, save your money & skip using these parts.
If you are going to see the circuit, they're a bit of extra insurance against to loose nut between the steering wheel & the seat.