Any issues running Del West titanium valves in 243 heads? Car would see street and strip duty, but no more than 3-4k miles per year.

 

Other than using copper beryllium seats, I can't see any issues and nothing but good gains.

 

I'd be interested to see a compare in the dyno between titanium valves and normal SS ones. Specifically the shape at the top of the curve.

 

Miami9933 or whatever his username is (Christian) has them. They made the top of his curve SMOOTH.

If I had the extra coin, it'd be a no brainier for me... But good lord they're expensive.

 

What's the weight difference between those and hollow/sodium valves?

 

Del West Intake valve 2.055 Titanium 73.3 gram

GM Z06 Int valve 2.000 74.7 gram

Del West Exhaust valve 1.600 Titanium 62.3 grams

GM Z06 Exhaust valve 1.550 64.6 grams

I'm not sure about the other sizes.

 

There's no need for CuBe seats unless you have a lot of heat. The C6 Z06 runs a Del West intake on an iron seat and comes with a warranty. The exhaust is the first one to show thermal issues but you'll be fine.

 

Those Z06 valves are coated though, are they not? And I'm pretty sure the PM metal seats have copper infused in the alloy to help with the heat transfer.

 

Durabond makes a copper infused seat I was considering using. The valves I have are coated as well

 

The coatings don't last on the valve seats. A properly tuned NA engine 7500rpm will have minimal seat wear using quality iron as long as it's set up right, nothing special just quality work & parts.

 

I was simply saying if you're going the extent of putting Ti valves in a 243, you'd do the seats as well since yea, it helps with heat, but it also extends the valve life.

You don't HAVE to do it, but it's one of those things that "while I'm at it" or "I've already went this far, so..."

That's what I meant.

 

The seats on my new Wegner 799 castings do have some copper in them. I was told by Carl that GM used those seats for great longevity in Flex Fuel applications which run hotter and cleaner.

 

Do all 799 heads use these seats? If not, how can you tell the difference?