I'll have to take a closer look at spots to relocate the coils. As I mentioned earlier the engine bay is very narrow leaving the frame close to the exhaust manifolds and the firewall (both in the engine bay and interior) short of unused areas. I may have to go with the expensive valve cover covers. My son has been pushing for relocating the coils too. He's an engineer so I'll ask him where he might mount them as I just cannot see a spot. I really appreciate all of your folk's help!You can remote mount the coils. Coil Pack Relocation Kit for LS1 LS6 LSX With Extension Harness and Coils Black | eBay
Thank you for the in-depth, detailed reply. I was looking under the hood again and there are simply no good spots to mount the coils on either side of the firewall. The frame is very close to the manifolds so location of the coils on top of the valve covers is a good spot. I will go with a 2 piece valve cover, which will be the simplest solution with also the best electrical performance as well IMHO. Thanks again!The wires could be pretty much as long as needed, but the stock short wires have the advantage of less resistance with standard resistor wire. Wire is rated as Ohms per foot, so the short wires just naturally have less resistance. I have considered moving my coils and have found there are U-cut kits available that have wires 45 inches long. Here's one:
Find MSD 8.5mm Super Conductor Spark Plug Wire Sets 32073 and get Free Shipping on Orders Over $99 at Summit Racing! MSD 8.5mm Super Conductor spark plug wire sets feature a special helically wound core that has just 40-50 ohms of resistance per foot—but with an RFI suppression equal to a 1,500...www.summitracing.com
Also, I have seen some stock valve covers that have had the coil mounts ground off, smoothed and painted. Cheap to do, but not the best look IMO if you are going to go to all the trouble to move the coils. Something like this would look better:
LS1 - LS2 - LS3 - LS6 - LS7. LS Series Engine Finned Aluminum Valve Cover Set. Black powder coated cast aluminum with polished fins. Coil brackets will NOT work on these covers.www.ebay.com
These covers allow you to keep the shorter wires and hide the coils, but you said you were cramped for room:
Valve Cover Top Style: Finned. Instead, the coils bolt directly to the valve covers for a nice angled look! Holley aluminum LS valve covers reuse the factory gaskets and bolts, will work with. 750 in.www.ebay.com
Considering the cost of long wires, trick valve covers, remote coil mounts and coil harness extensions, this would actually be cheaper if you have the room, since you could use the stock wires and coil harness.
I have a supercharger sitting on top of the engine so a factory cover will not fit. I have 2 plastic covers installed now that do a decent job of covering the coils and fuel injectors wires, but they look a bit cheesy, and one has broken mounts so it is just sitting there. Good suggestion otherwise!Have you thought of simply using the factory plastic covers that hide the valve covers/coils? You could repaint them (body colour?...), add a logo (painted, or original chrome ones...)...
Actually, typing this makes me wonder why I have not done that to my own LS engine!...