Brody

iTrader: (3)

Is there any hard data out there? This was discussed at some point and a YT (retailer or rep of some sort) stepped on saying the new "ultralight" ones were lighter at the tip than the stockers. Someone disagreed b/c the rep didn't include the roller weight, and we didn't hear from the rep again. I'm trying to build up a valvetrain that's stable at roadrace rpms for extended periods of time, so valve/rocker weight is important.

I understand YT's will have a superior wipe pattern.

I understand YT's won't spit needle bearings.

I believe they're lighter overall, but the tip weight is the big factor. Even knowing they're aluminum, just looking at the two makes it hard to believe the YT's are lighter at the tip.

Thanks!

LSGunZ28

iTrader: (8)

I have YT ultralites..

I think theyre the all aluminum ones with roller tips and cost around $399 or so, right?

I heard overall theyre lighter, but the Harland sharps(whcih Im gonna end up using) are lighter at the tip

GrannySShifting

iTrader: (10)

They are fine if you are running a good spring for the application no issue

WKMCD

iTrader: (2)

I run PAC 1521's with the L92/LS3 YT Ultralights and a HUGE lift cam, Trend .110 pushrods and Caddy Racing lifters. The valve train is very stable and quiet to the 6800rpm rev limiter.

Tavarez

I've been wondering abot getting some YT's for my vette, not sure yet.

Jeff@TotalPerformanceEng

iTrader: (6)

Get them.. You wont regret it. They are a great upgrade, that is not expensive..

No, the YT ultralights are not lighter than the stockers on the nose. But they have a wayyyyy better wipe pattern, are more stable, and do not have needle bearings.

Cost vs benifit, they are the best rockers on the market.. IMHO

Brody

iTrader: (3)

Thanks guys.

I'm hoping to spin it to 7250 or so (only if it saves me a shift - track car), so I'm being pretty particular on valvetrain weight issues. I doubt I'll run a giant cam. I'm looking at a forged LS3 build, so with the big valves I need to watch the weight.

LSGunZ28

iTrader: (8)

So theyre a better rocker than the Harland sharp rockers?

Jeff@TotalPerformanceEng

iTrader: (6)

In my honest opinion..Yes, without question. Their lighter, and have way less instances of breaking. The HS rockers have had ALOT of documented rocker failures.

Again, this is only my opinion. But it is based off of facts. I'm sure there ar ehundreds of satisfied HS customers..

LSGunZ28

iTrader: (8)

Then why was I recommended using Harland sharp rockers over the YT ultralites?

I owned both at the time...

Im only gonna be spinning the engine to 6600 rpms probably and none higher 6900 max

my peak power will probably be made at 6300 rpms.... bottom line, I want something that wont give me gailure, thats why I was told by many a people that HS rockers were the best for my application...