F-2 Speedy

I think their fine for stock rebuilds as stated OE replacement ..........but if your running a more aggressive cam profile you might want to look at others

getrdunn

So what kind of profiles have put these to the test with good or bad results. I need to replace my new solids for .300 lifters. Are Isky red zones still near the top or are the hy-lift Johnsons doing well also?

I will have two sets of new solid severe duty crowers on the swap.

dunnitagain

Johnson , not Hylift Johnson , does make a Dog Bone style lifter now .

getrdunn

In solid as well? Tks

Rookie

I was going to go with these until Comp said there was no need to replace my solids on their HR HUC lobes and my Red Zones were a good match.
http://www.iskycams.com/downloads/LSSemaFinal.pdf
The UPS man just dropped off my rebuilt Red Zones today.

getrdunn

I talked to jv today and ya... The world of lifter is about as confusing as the real world. All seems to intertwine and somehow get back ttt. "1"

I didn't see the plus .300 SR bush on website?

getrdunn

I was hoping you'd be able to tell me how great the YT's worked but I guess I might have to be the gp. Lol...

Rookie

I'd just call Isky and speak with an engineer. They are very helpful.
I want to get some Yella Terras, but when I went to pull the trigger on them they had to build some 1.75's because they aren't a shelf item. It gave me too much time to think about it. I figured rockers were the least of my worries. I will probably still pull the trigger on them eventually.