Hello!

During the winter I will upgrade the camshaft and valve springs (and valve seals).
(Crane PowerMAX 104224, spring Crane 99848).

I decided to stay with 1.5 rockers (until I got ported heads).
But I may want some new 1.5 rockers.

Question:
- What roller rockers do you recommend?
(Do not need the most expensive one...)
- Do I need self aligned rockers?


Thanks!
Morten

1987 IROC-Z, T-tops, Loaded.
305 TPI - TH700R4 B-W 9" Posi 3:27
Hooker Super Competition (Ceramic Coated by Jet-Hot),
Flowmaster American Thunder 3" Cat-back., Cat.removed,
Fully ported + +plen./run./mani., Ram-Air-Induction, T.B. Airfoil,
Holly AFPR., T.B. Coolant Bypass, 180*F, Hypertech FS (200*-185*),
Custom Chip ( CCS "Tweak" ACXT180). Accel coil, cap. wire etc.

 

1987 was a one year only. The first year for centerbolt heads and the last year the rockers are retained by the pushrod holes in the heads. You do not want self-aligning rockers.

 

Crane Gold narrow body rockers work just fine. You have a choice of self aligning rockers or guideplates but not both or they will be fighting for control and you will lose. Just like AvP. Whoever wins, we lose.

 

The Crane Gold Narrows will fit, but they're pricey. I have had good luck fitting less expensive Harland Sharp rockers under centerbolt valve covers. They sometimes require EVER SO SLIGHT modification of the breather baffle box on the underside of the cover to fit (squeeze it a little skinnier with a big pair of pliers). No outrageous cutting of the supports/webbing required.

 

Can I use these:
Proform PRO-66906C http://store.summitracing.com/defaul...2D42799+308263

-Morten

 

Thoughs are not roller rockers ,thoughs are roller tip rockers a little differant. They should work though(i think).

 

Those are only roller tipped. IMO, save up for the good stuff the first time. Later when you want to buy the right stuff, it would be cheaper to have bought it the first time than to buy the lessor stuff and now the right stuff. I recommend the Crane ones because they require the least amount of screwing with. You could use Comp Cams but those are a little more expensive and possibly not cost effective unless you have a better motor.

Maybe you could wait till you do your cam and then go with what the manufacturer recommends. I have mine set up with 1.5 and 1.6 ratio RRs.

 

i have some Crane 1.6 S/A roller rockers in the for sale section. 1800 miles on them, for 3/8's stud. Only selling cause I had to go to a 7/16's stud. 200.00 will get em.

 

Hi, Morten. Since it only takes a few minutes to pop off the valve cover, why not have a look yourself before you buy anything?

Pop off the valve cover and look at the pushrods. If they pass through the cylinder head through a narrow broached slot, then you do NOT need self-aligning rocker arms. If they pass through a wide oval or circular hole, then you DO need the self-aligning rocker arms. I think that 1987, as Willie states, is a crossover year where you find centerbolt heads and broached pushrod alignment slots. However, I have heard rumor that late 1987 model heads *may have* had self-aligning rocker arms.'

I also agree that you should buy full-roller rocker arms. I am partial to the Comp Cams pro magnum rocker arms: A little bit more money but boy are they ever EASY to install, and adjust! They are also very, very rigid and not too unreasonably priced for their superior quality.

 

Yes, I will take a look.
Before your "instrucion" I didn't know what to look for......

Thanks for all reply's.

 

self aligning will have a recess in the center of the tip whereas a non will be smooth. if you go with a full roller you will need a comp 1015-16 narrow body and if you go with roller tip you will need a 1412-16.
i know this for sure, i pull them everyday at work (comp).

 

Will the 1015-16's fit undre the stock valve covers?

 

after talking to a few of the tech guys im told they will work but taller VCs might be needed to clear the poly locks. they said you might hafta put the hold down bolts in the tubes and flatten them a bit so they will clear properly. before yago squeezin the tubes i wiykd do some test fitting first.
and after talking to a friend/tech he said if ya go with hydro rollers you shouldnt have any probs with the polys backing off vs solid rollers.
i will double check on this tommorrow since its been quite a few months since i asked this.

 

You know, there is a reason why I chose to go with Crane Gold stuff. Because it means I don't have to grind this, replace that. I just put them on and it works with the stock VC.

I wanted to use the Vette valve covers on my vette so I had to grind the drip tabs off. The OEM stamped steel ones clear all the locks and what not.

KISS

 

Hi

Been to my garage this weekend.
The pushrod pass through the cylinder head through a narrow slot
and the rockers have no notch or groove at the rocker tip.

As I can see, this is a "non-self-aligning" rocker set-up.
Am I right?
And Crane Gold 10750 will be a good choice.
Not cheap but....