setting up solid rocker shafts - Cut-Weld-Drive Forums

**tattooed_pariah** · April 12th, 2017, 09:21 AM

trying to re-set up my rocker shafts and noticed the gap is massive.. should it be this big or is there a different problem?

Bugula · April 12th, 2017, 09:59 AM

I never seen one with a gap like that on the center spacer. I would shim the heck out of it. Then you'll be good.

nshaddox · April 12th, 2017, 10:40 AM

yea, each rocker should have like .005-.010" end play i think. you can confirm with the rocker manufacturer. its been years since i set up some scat ones, but they had different shim thicknesses available to get everything right...

Square · April 12th, 2017, 10:46 AM

can you rotate the hold-downs???? to take out the gap????

**tattooed_pariah** · April 12th, 2017, 11:02 AM

Quote:

Originally Posted by nshaddox

yea, each rocker should have like .005-.010" end play i think. you can confirm with the rocker manufacturer. its been years since i set up some scat ones, but they had different shim thicknesses available to get everything right...

all in all, it looks like it needs about a quarter inch of shims to take out all the endplay from all four rockers, that seems like a shit ton to me..

Quote:

Originally Posted by Bugula

I never seen one with a gap like that on the center spacer. I would shim the heck out of it. Then you'll be good.

That's what I might wind up doing, just wasn't sure if there was a limit on how many shims is too much..

Quote:

Originally Posted by Square

can you rotate the hold-downs???? to take out the gap????

I don't understand what you mean, the mounting blocks are the same dimensions on either side and I thought you always want the gap pointed up?

nshaddox · April 13th, 2017, 03:00 AM

Get someone to machine a new center spacer for you. Did you buy these new? If so contact manufacturer with quality complaint.

**Unkl Ian** · April 13th, 2017, 05:12 AM

EMPI ?

Parts missing ?

**tattooed_pariah** · April 13th, 2017, 08:45 AM

was part of the initial build of this engine back in 2002.. no idea brand, i found my build invoice, it cost me $40 back then..

**V8Transporter** · April 13th, 2017, 10:45 AM

I keep thinking that we shimmed the rocker arm spacing with thin bronze shims to adjust for the variations in the castings. A caliper would be really handy here, because you still need some clearance.

nshaddox · April 13th, 2017, 11:28 AM

Buy some nicer ones. Save yourself a bunch of time.

**tattooed_pariah** · April 13th, 2017, 12:32 PM

Quote:

Originally Posted by nshaddox

Buy some nicer ones. Save yourself a bunch of time.

I was thinking about replacing em, since they are 10+ years old now.. but then that creates a new dilemma.. do I replace them with new 1.1:1 or do I take this opportunity to bump them up at all?

Would there be any advantage of using 1.25:1 with an Engle 110 cam in this 1776?

Daddy o's 67 · April 13th, 2017, 04:19 PM

With that set up you should be able to run stock with out any problems.

**tattooed_pariah** · April 13th, 2017, 04:21 PM

Quote:

Originally Posted by Daddy o's 67

With that set up you should be able to run stock with out any problems.

I've been running stock since 2002, I'm just wondering if I would get any benefit out of bumping it up..

Daddy o's 67 · April 13th, 2017, 08:03 PM

If you were to be running the motor hard or were to do it just for the "cool factor" it would probably be a benefit to go to the solid shafts, other wise not worth it.

Remember, once the valve covers are on nobody will know the difference.

**tattooed_pariah** · April 14th, 2017, 02:34 AM

Quote:

Originally Posted by Daddy o's 67

If you were to be running the motor hard or were to do it just for the "cool factor" it would probably be a benefit to go to the solid shafts, other wise not worth it.

Remember, once the valve covers are on nobody will know the difference.

i already HAVE solid shafts, I'm asking if I would benefit from changing from 1.1:1 to 1.25:1 with an Engle 110 cam..

theredbarn · April 17th, 2017, 08:25 AM

Been running 1.25:1 on 110 cam and single hi-rev springs on the Kid's 1776 for years - until one of the valve springs broke from the extra strain. We got lucky and ony damage was the broken spring. Had the heads cut for and dual springs installed. So - I'll only go to ratio rockers after doing dual springs in the future... The kid's car really wakes up at 3500 RPM with the 1.25... I think it's worth it!

**tattooed_pariah** · April 17th, 2017, 09:16 AM

Quote:

Originally Posted by theredbarn

Been running 1.25:1 on 110 cam and single hi-rev springs on the Kid's 1776 for years - until one of the valve springs broke from the extra strain. We got lucky and ony damage was the broken spring. Had the heads cut for and dual springs installed. So - I'll only go to ratio rockers after doing dual springs in the future... The kid's car really wakes up at 3500 RPM with the 1.25... I think it's worth it!

I already run dual high rev springs, so I should be set for it..

bought a shim pack though, it was delivered on Saturday and I put my rockers back together on sunday.. so now I'm back to trying to figure out why it doesn't wanna run correctly..