7mm Spark Plug Wire Holders
thingiverse
I needed spark plug wire holders for my small-block Chevy with ram-horn exhaust manifolds. The "correct kit" is $150, so I designed and printed my own. These should probably be printed in ASA, but for now I just printed them in PLA to prove the fitment. I designed these to be universal. Cut and bend some steel to fit your application and you can attach the holders with 1/8" diameter 1/4" grip rivets and washers. For metric users, look for 3mm x 6mm rivets and washers. The .stl files include 2-wire, 3-wire, and 4-wire holders. If I ever feel froggy, I might re-do them for 8.5mm spark plug wires, and I might make 5 and 6-wire holders, but don't hold your breath.
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