FCar2000TA

iTrader: (7)

I might get to push my plans up, and get the heads done in April. So, I need to know which pedestal/std mount roller rockers are the most reliable. All of the threads that I have looked at are over 5 years old, so I am looking for some current info....

- Heads will be Frankenstein Stage 1 243.
- Cam lift is around .590/.610
- Don't want/need stud/shaft mount rockers.
- Don't want/need adjustable.
- Must be 1.7 ratio

So... Scorpion, Harland Sharp, Yella Terra?

Karlw

iTrader: (5)

For that lift, stock rockers with the bushing trunnion upgrade.

FCar2000TA

iTrader: (7)

I have read a lot on here that any lift over .6 needs roller rockers.

Karlw

iTrader: (5)

I should have asked first, what type of metal are the valve guides in those Frankenstein heads? Bronze will need roller tips, the powered steel should handle the stock rockers just fine. Somebody please correct me if I'm wrong.

FCar2000TA

iTrader: (7)

bronze, I assume. I got a pair of take off 243s, and those are what I am sending in.

blk00ss

iTrader: (66)

Stock heads will have powdered metal. And the stock rockers will be fine and that little of lift. Lots of guys run MS4’s BTR stage 4’s etc with stock rockers. You’re fine.

axe murderer

iTrader: (3)

As for the choice YTs always seemed to be the most popular, was always told HS are nose heavy but Trick Flow use to recommend them for their bronze guides.
I have a car I bought with a complete LME 408, has TFS as cast 220s with bronze guides & they built it with YT ultralights but it has a pretty big cam.
I'd do CHE bushings on a smaller cam.

Jimbo1367

CHE bushing

Darth_V8r

iTrader: (4)

I ran YT for about three years DD. No failure

pantera_efi

iTrader: (1)

Hi TA, I would have my Steel Guides installed in your new heads (take-offs) AND use my 8mm/10mm Step Studs.

The heads will need to be tapped to 10mm, this is also Jake "tech" (10mm holes) for rocker arms.

I would use OEM S/S rockers with CHE's.

Lance

FCar2000TA

iTrader: (7)

I don't want to reuse my stock rockers, since they are almost 20 years old. Scorpion and Harland Sharp are less expensive that new stock rockers with the trunion upgrade.

It doesn't make sense to me to get stock rockers when I can have rollers for around the same price.

KCS

iTrader: (20)

The stock rockers are actually very good. They're lighter than pretty much every aftermarket option and since they're steel, they won't fatigue and break like aluminum. The main weakness is the trunnion, which should be replaced.

FCar2000TA

iTrader: (7)

But are they more reliable than pedestal mounted roller rockers?

KCS

iTrader: (20)

For the cam you listed, I would say yes.

Karlw

iTrader: (5)

If you really have your heart set on roller rockers, take a look at Texas Speed's roller rockers. They based them on GM's rockers and added a roller tip.

FCar2000TA

iTrader: (7)

I do like those, but they are 1.72. Not worth the price plus new pushrods.

LS1MCSS

iTrader: (18)

That extra .02 on the ratio is not going to make a hill of beans difference and you need good push rods anyway. If you enjoy changing broken rockers, get the Scorpion.

G Atsma

I just calculated it. It increases lift 1%. NOT worth even thinking about! You're dissing them because of THAT?

FCar2000TA

iTrader: (7)

I already have hardened pushrods.

G Atsma

Will they be the right length after you put new rockers in, no matter who's you use?