1.6 roller rocker question
Thread Starter
Team Owner
Joined: Oct 2006
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
1.6 roller rocker question
I'd like to buy a set of self-aligning 1.6 rockers for my stock except headers 89 coupe. At a future date, I
will be using AFR heads, but that's a ways away. My question is this: Will the self-aligning models work
on aftermarket heads, or will I need a different set?
Other than valve cover gaskets, what will I need to do to run them, and what models will be the best for
my application (kind of stuck on which cam I'd like, but it won't be any bigger than the ZZ-9 cam from
TPiS).
Thanks for helping!
:ears:
will be using AFR heads, but that's a ways away. My question is this: Will the self-aligning models work
on aftermarket heads, or will I need a different set?
Other than valve cover gaskets, what will I need to do to run them, and what models will be the best for
my application (kind of stuck on which cam I'd like, but it won't be any bigger than the ZZ-9 cam from
TPiS).
Thanks for helping!
:ears:
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
You really need to replace your springs when you do the rocker arms. The LT4 springs will work even with the ZZ9 cam. You can get a set of springs and keepers from a GMPP outlet for cheap.
I won't hazard a guess as to what anonymous parts might work way in the future with other parts.
I won't hazard a guess as to what anonymous parts might work way in the future with other parts.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Going from 1.5 to 1.6 rockers will increase valve lift about .030" This will put your stock 89 springs right on the ragged edge on having the minimum clearance, so - I agree - it's best to change springs. Your stock ones are probably tired anyway.
In addidtion to that, CompCams recommends you move to NON self-aligning rocker arms. That's what I did. You'll need pushrod guide plates to run the NON self-aligning rocker arms.
Now would be the best time to move to 7/16" rocker studs and specify rockers that are designed for those studs. .080", hardened one-piece pushrods would be a nice move too. However, you may need to buy another set of a different length when you move to the AFR heads.
Just the way I'd do it.
Jake
In addidtion to that, CompCams recommends you move to NON self-aligning rocker arms. That's what I did. You'll need pushrod guide plates to run the NON self-aligning rocker arms.
Now would be the best time to move to 7/16" rocker studs and specify rockers that are designed for those studs. .080", hardened one-piece pushrods would be a nice move too. However, you may need to buy another set of a different length when you move to the AFR heads.
Just the way I'd do it.
Jake
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Yes, but you will need the hardened rods etc, Unless you are building a car to race it's not necessary. Wait until you do heads to spend all that. Remember Comp Cams is selling parts so they want to sell you a high dollar kit. It depends on what you want.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
I have a set of 1.6 roller rockers for center bolt style valve covers if your interest. I bought them from Summit Racing for $230.
PM me if your interested. These have NEVER been used.
http://store.summitracing.com/partde...6&autoview=sku
I was going to use these on my 88 motor, but I took a different direction.
PM me if your interested. These have NEVER been used.
http://store.summitracing.com/partde...6&autoview=sku
I was going to use these on my 88 motor, but I took a different direction.
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Thread Starter
Team Owner
Joined: Oct 2006
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
The 113 heads come with non-functional guide plates and self-aligning stamped rockers. So you will likely have to deal with these guide plates anyhow; why not go with non self-aligning RRs, hardened guides & PRs and maybe even a set of TPIS springs to support your future ZZ9 cam. I agree that going to 7/16" studs is a good idea, especially looking ahead to the new cam.
You should get new keepers and a variety shim pack from Comp Cams and some light assembly lube for where the new parts make contact.
You should get new keepers and a variety shim pack from Comp Cams and some light assembly lube for where the new parts make contact.
Melting Slicks
Joined: Jan 2002
Posts: 2,238
Likes: 4
From: Milan
Going from 1.5 to 1.6 rockers will increase valve lift about .030" This will put your stock 89 springs right on the ragged edge on having the minimum clearance, so - I agree - it's best to change springs. Your stock ones are probably tired anyway.
In addidtion to that, CompCams recommends you move to NON self-aligning rocker arms. That's what I did. You'll need pushrod guide plates to run the NON self-aligning rocker arms.
Now would be the best time to move to 7/16" rocker studs and specify rockers that are designed for those studs. .080", hardened one-piece pushrods would be a nice move too. However, you may need to buy another set of a different length when you move to the AFR heads.
Just the way I'd do it.
Jake
In addidtion to that, CompCams recommends you move to NON self-aligning rocker arms. That's what I did. You'll need pushrod guide plates to run the NON self-aligning rocker arms.
Now would be the best time to move to 7/16" rocker studs and specify rockers that are designed for those studs. .080", hardened one-piece pushrods would be a nice move too. However, you may need to buy another set of a different length when you move to the AFR heads.
Just the way I'd do it.
Jake
-Beppe-