ive been using supertech for years and on many different engines.. cant complain about them at all, top notch stuff

 

Is everybody upgrading valves as well along with doing their springs/retainers?

I was under the impression that using the factory valves would be okay with the spring/rets.
Am I wrong? Forgive me if this has been answered a billion times. I've searched and am still searching for answers to re assure me.

My main reason for wanting to upgrade, as stated in OP, is reliability and the horror stories of cracked retainers which lead to dropped valves. Also due to some say that 2step is harsh on the stock valvetrain and have caused several to drop valves IIRC.

Although I dont have 2step set up atm, I'd like to have it set up here in the near future and be able to use it safely on the occasional track days, or at stop lights to mess with other bewsted friends. < LOL >

I'd just like to have the extra piece of mind that the retainers are much less likely to crack and Fml.

If I'm in the wrong for thinking stock valves would be okay, then oops its not a Bseries Lol.

 

stock valves are fine. If you have the head off and are turbo i'd say replace them. I only use ferrea valves. too many issues with everything else and ferrea usually flows better than others as well.

 

Okay thats what I thought.
I've got the head on the car still driving. Don't quite have a reason to really pull the head off yet so I'll keep the stock valves for now. Whenever I do pull the head off then I'll buy some.

Thanks everyone that has contributed to the thread

 

The OP requested this


The only names you need are Supertech, Ferrea. Personally I really like the Ferrea valves but Supertech is a better value. When you are buying keep in mind that all the parts come from the +1mm RSX in most catalogs.

I used Inline Pro to get Ferrea Valves their spring combination and I resued the stock guides on my head.






I have also done another bought through Laskey using Supertech. This head got their Inconel Exhaust Valves, Nitride Coated Intake Valves, Springs and reatiners and last but not last valve guides. With the mileage on your engine the guides would not be a bad idea.









Oh, don't forget the seals

 

We compared Ferrea valves to Supertech valves and the Ferrea flowed 1% more.
This was on a head with porting and bowl work. The Ferrea are considerably more money for the few who want the most.

 

It may have been a total fluke but I had a stock valve fail in my car. The stock valves are two pieces welded together at the head. One of the welds failed and the head of the valve fell off and did a number on my piston/head. If you're building your head I think it would be foolish not to replace the valves considering the relatively low cost vs potentially trashing the whole motor when a stock one fails. That said I still run stock valves but the rest of my motor is stock so I don't feel like I'm risking much.

 

I went with supertech thru Mike Laskey got dual springs and ti retainers, standard sized inconel valves both ex and in, and new seats for 625 shipped. they should be here on Friday

 

I'm surprised they make inconel intake valves they are heavier than stainless and offer no advantage that I could see...

 

The advantage is Inconel. Inconel maintains its strength to 1800 degrees and is ideal for turbo applications where there is excessive heat. Stainless just wimps out.