xrav22

https://www.holley.com/products/acce.../parts/241-136

It states
These cast aluminum valves covers these may be slightly taller than OEM, however they are not designed to work with roller style rocker arms.
My question is can I use stock valve covers with rollers. I wanted to do a roller rocker upgrade as a fun learning experience.
Thanks
I love the valve covers by the way

DMITTZ

In answer to your question, if you put roller rocker arms on the 'drip rails' in the stock valve covers will hit the top of the roller rockers. You can grind off the drip rails (inside the covers) and the stock valve covers 'might' fit depending on the brand of rockers. I also had to use two valve cover gaskets as well as grind the drip rails to be able to run roller rockers. So yes, you can run roller rockers if you modify the valve covers slightly.

Modifying them is pretty simple, but you do have to mod them or they won't work.

I don't think the valve covers in the link even have drip rails so they may work as is, or you might need to use a double gasket to get enough clearence, but that's not a big deal.

ghoastrider1

They look like the old C-1 valve covers, but painted orange. Make sure you have the correct bolt pattern for these heads. I too like them.

DMITTZ

Your right ghoastrider they look like they have the older perimeter style bolt pattern.


Is your car the older perimeter style bolt pattern or the newer center bolt pattern OP?

Nowhere Man

they are a copy of GM 68-69 Z-28, 70-72 LT-1 covers and 73-82 Vette L82 covers you can buy them used cheaper then that. they would only work on pre 86 heads with the perimeter bolt pattern. they also sell a spacer to clear roller rockers or you could run thicker or double gaskets

ghoastrider1

I also have a spare set of MT valve covers that look like that

drcook

here are some that will clear rollers

https://www.yourcovers.com/valve_covers_11026.php

Churchkey

Valve cover adaptors are available for early covers to center bolt style.

https://www.speedwaymotors.com/Valve...SABEgIErfD_BwE

MikeM

Anything wrong with using plain old 3/8 X 24 Jam nuts on top of the OEM rocker nuts? They don't stick up as high as the top of the stud.

Hardway

I used the adapters on the ZZ4 crate motor I had in my '69 Z28 clone. The engine had center bolt valve covers and just looked wrong in a muscle car. I bought a used pair of finned valve covers at a swap meet for $50, had a friend powder coat them, and bought a new badge, cap, and breather for them. They really set the engine off!

smanning73

Nice! Where'd you get the circular corvette emblem that's on the holley valve covers?
Shawn

fredk

I did my RR and trimmed the stock valve covers. It's a simple job.