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I was able to get a pair of Holley tall LS valve covers installed tonight. I typically am biased to go-fast and practical mods, but after relocating the coils months ago, I couldn’t stand the look of the factory valve covers anymore. I did quite a bit of research on what valve covers are available for the C5, but most of them are stupidly priced. At $280, I am thrilled with the form/fit/finish of these covers. The powder coat quality is excellent and the extended hardware they came with made the job seamless. There are no clearance issues with the alternator or anything like that. Additionally, they have baffles that run the full length of the cover so from a PCV circulation perspective, they should work like the OEM covers. I definitely recommend these for anyone that is on the fence. I can’t wait to get them paired up with the Fast 92 intake and Holley fuel rail I am waiting to install. Once I have enough pennies to pick up a set of heads, it’ll be go time.
Holley also makes valve covers that retain the OEM mounting points for the coil brackets if you’re not motivated to relocate all that stuff.
Last edited by wscott62893; 03-07-2019 at 08:21 AM.
It would be nice if someone made affordable covers with AN fittings. I am content with the OEM style PCV configuration the Holley covers have. If I was planning to run boost, then it’d be a different story.
I forget what brand braided wrap it is, honestly. It’s a split loom wrap good to 400 degrees I bought off of Summit. The factory plastic loom was so brittle I decided to just replace it.
Last edited by wscott62893; 03-06-2019 at 08:35 PM.
I absolutely love that look, but man it's a lot of work to get there.
I keep my hood closed. and my bay is eat off of clean.
I agree, it is a lot of work. But we have long Winters up here in the Northeast. I had plenty of time to burn and this was one of the many upgrades I completed this Winter. I love doing all the mods but my wallet doesn’t
Last edited by wscott62893; 03-06-2019 at 08:46 PM.
Thank you! Not off hand, but I can take some tonight if you'd like. I relocated the passenger side coils to the inside of the battery surround. I made brackets that allow me to mount them flat on the inside face of the surround. I relocated the driver side coils to the backside of the driver side wheel well. Also made a bracket for that which contours the fender for a nice fit. Driver side coils are easily accessible via the access panel in the wheel well or by removing the washer fluid tank. Passenger side requires no disassembly to access. Both sides required extending the harness which I did at the same time as re-looming the entire engine bay with the high temp wrap. I also installed the MSD 8.5mm Super Conductor custom length plug wires at the same time. It was a good bit of work, but I enjoyed the project. In parallel I was doing a clutch swap and torque tube rebuild so the coil relocation was a cake walk
Thank you! Not off hand, but I can take some tonight if you'd like. I relocated the passenger side coils to the inside of the battery surround. I made brackets that allow me to mount them flat on the inside face of the surround. I relocated the driver side coils to the backside of the driver side wheel well. Also made a bracket for that which contours the fender for a nice fit. Driver side coils are easily accessible via the access panel in the wheel well or by removing the washer fluid tank. Passenger side requires no disassembly to access. Both sides required extending the harness which I did at the same time as re-looming the entire engine bay with the high temp wrap. I also installed the MSD 8.5mm Super Conductor custom length plug wires at the same time. It was a good bit of work, but I enjoyed the project. In parallel I was doing a clutch swap and torque tube rebuild so the coil relocation was a cake walk
did you paint your fuel rails too?
def take some pictures if you are feeling ambitious. If you are feeling VERY ambitious, you should come to my garage and duplicate your efforts
i'm adding this to my projects list.
def take some pictures if you are feeling ambitious. If you are feeling VERY ambitious, you should come to my garage and duplicate your efforts
i'm adding this to my projects list.
I didn't paint the fuel rails, that's OEM coating. I will be replacing the fuel rails soon enough so I stuck with just cleaning them up.
I'll get some photos tonight, that's no problem!
Looks like you're only over in NJ (I am in Lancaster County PA). I'd be glad to lend a hand if you need it. If you want me to do it for you entirely...I could...but I'm not cheap
I love that look too. I had a set of the polished Holley covers that retained the coil mounts but they were not spaced correctly for ls1 coils so I sold them before I ever installed them. I did not know about these being available so thanks for the heads up!
Damn that looks good! Is their a tutorial on how are where to relocate the coil packs?
I am not aware of any DIYs on coil relocation, but there may be one out there somewhere. It is a relatively involved process, but if you're comfortable fabricating brackets/ extending electrical harnesses/ making your own spark plug wires; it can be done in an afternoon. All other steps in the process are basic wire routing and bolting stuff together.
And thank you John!
Last edited by wscott62893; 03-07-2019 at 11:57 AM.
Damn that looks good! Is their a tutorial on how are where to relocate the coil packs?
I've seen a couple of threads in the archives, showing how they relocated them behind the inner fender. If you do a search, I'm sure you will find the articles.
03-06-2019, 08:12 PM
Holley Tall LS Valve Covers Installed
and my bay is eat off of clean.
