V8Rumble

iTrader: (9)

Trying to figure out whether or not buying the titanium retainers (when I install a cam) would be worth the added cost in my application. My car's going to be primarily a street/strip type of car (with a roughly 6000 rpm redline), but I'm also going to run it on the Bonneville salt, & I'm hoping to run the occasional open-road event with it as well...

Here's what I'm thinking - on the one hand, these 2.16" intake valves are pretty freakin' heavy, so anything I can do to shave a little weight there should be worthwhile - but OTOH, there's a nearly $200 difference in cost between the Ti retainers & the 4140 CM steel retainers, & the way things are right now, that money could be pretty useful for getting other parts to get the car running...

What do you guys think??

Gray86hatch

iTrader: (83)

Spend the $ on some hollow stem valves and get a set of tool steel retainers. They are only a couple grams heavier than a Ti one.

Tim

V8Rumble

iTrader: (9)

Thanks for the reply Tim, I'm thinking that's what I'll probably do. New valves might still be a ways off for me (especially since the engine is brand-new), but I kind of suspected that the weight difference might not justify the cost differential... Thanks again.

Gray86hatch

iTrader: (83)

LS3 intakes are $200

LS1-450

iTrader: (33)

You don't need hollow stem valves to spin to 6K RPM. Use whatever dual springs are required for selected cam, tool steel retainers & 1.7 rockers. The valvetrain stability up to your stated RPM will be fine using this set up.