Installing Proform Valve covers with Holley Fuel Rails on the C5 Corvette












This is the color I chose at the powder coater shop.
I don't think my camera captured the true color of it.
































I decided to replace all the Silver hardware for BLACK hardware for a cleaner look




Rubber washers to protect the valve cover paint while the relocation bracket is installed.




OIL Cap
























Starting Install




Disconnect (+) battery terminal.




























































Be sure to run your finger around the seal of the Proform cover.
Ensure that the gasket is sealing all the way around !

I had to bend my catch can bracket slightly for the Proform cover to fit.

This is how it should look like once I relocate the coil packs in the fenders (Future project)












Coil packs and brackets ready to install.




































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Be sure to run your finger around the seal of the Proform cover.
Ensure that the gasket is sealing all the way around !










I chose to install the fuel rails before I installed the drivers side brackets/coils.
It made it much easier to work in that area with no coil brackets/coils.








































Have a Fire extinguisher handy. Better to be safe than sorry.




Setup Complete.




Setup Complete.




Setup Complete.








INSTALL ISSUE (my bad...8-)




I discovered a slight rubbing sound inside the cabin when driving.
I found that the fuel rail (supply line) on the passenger side was not angled correctly and making contact to the fireawll.






Rubbimg on my Aluminum fitting.






I trimmed the length of the fuel line so I did not have to tuck so much of it under the firewall.
You may .... or may not need to do this. Your application may be different.






I foam wrapped my fuel line to help reduce any rubbing.






Fuel line safely angled so no more contact to the firewall.






I also foam wrapped the connection at the firewall.
It was close to the break booster and I did not want it to make contact.










Verify that all fuel line connections are made and tight.
Verify that all electrical connections are made and tight.
Be sure to run your finger around the seal of the Proform covers on both pass/drivers sides.
Ensure that the gasket is sealing all the way around !

Reconnect the battery after you ensure that all connections are made.

Turn your ignition key to ON, but don't start the car.
Allow the fuel system to pressurize the new fuel lines.
Inspect the fuel lines for any leaks.

Have a Fire extinguisher handy. Better to be safe than sorry.
Start the car.
You will need to turn over the motor a few times to start due to there being no fuel in the fuel lines.

I performed 3x heat cycles before driving my car to help ensure everything was ok to run.

HEAT CYCLE #1
Allow the car to idle for 10 mins in your garage.
Inspect the fuel lines, and seals around the Proform covers for leaks.
Allow engine to cool
Inspect the fuel lines, and seals around the Proform covers for leaks.

HEAT CYCLE #2
Allow the car to idle for 10 mins in your garage.
Inspect the fuel lines, and seals around the Proform covers for leaks.
Allow engine to cool
Inspect the fuel lines, and seals around the Proform covers for leaks.

HEAT CYCLE #3
Allow the car to idle for 10 mins in your garage.
Inspect the fuel lines, and seals around the Proform covers for leaks.
Allow engine to cool
Inspect the fuel lines, and seals around the Proform covers for leaks.

TEST DRIVE
Go for a short drive and return home.
Inspect the fuel lines, and seals around the Proform covers for leaks.
Allow engine to cool
Inspect the fuel lines, and seals around the Proform covers for leaks.


If no leaks of any kind can be found, then you should be good to go !




PRO's
I love the new look !
Actually noticed a 5 degree temp reduction cruising on the highway. !
Maybe only a couple degrees lower temp running in in the city.



CON's
I noticed a slight increase in engine noise inside the cabin.
I guess it makes sense that the factory engine covers do provide a slight noise insulation.


Enjoy your new look under the hood !




Coil Relocation Project