'67 HO GTO Vintage photo

[60sStuff]

For those interested in more information on the 1967 GTO equipped with the optional HO (L74) and RA (L67).

Below are a few factory illustrations about the U-turn engine wire harness that’s required for these two models fitted with the large exhaust manifolds.

[67since67]

Interesting details Chris! I remember similar cable routings from my short tenure at a Pontiac dealership in the mid 70's, not sure on what specific cars though. - Bill W

[3X24SPD]

That's a great illustration.

When I put my '66 together, I didn't like the way the factory put the positive battery cable routing up between the exhaust manifold tubes to the inner fender- so I was planning to fabricate a routing tube to do just what that '67 HO tube does.

Then I discovered the factory '67 Tube- and just bought that.

But I didn't like or want to route the starter wires through that same tube- then up & around the front of the motor- so I modeled a custom tube, and 3D-printed it to route those wires up the back of the block.

BTW- that tube is printed in Ultem for any of you folks wondering if a polymer will hold up to the temps.

[Rfish]

Originally Posted by 3X24SPD

That's a great illustration.

When I put my '66 together, I didn't like the way the factory put the positive battery cable routing up between the exhaust manifold tubes to the inner fender- so I was planning to fabricate a routing tube to do just what that '67 HO tube does.

Then I discovered the factory '67 Tube- and just bought that.

But I didn't like or want to route the starter wires through that same tube- then up & around the front of the motor- so I modeled a custom tube, and 3D-printed it to route those wires up the back of the block.


BTW- that tube is printed in Ultem for any of you folks wondering if a polymer will hold up to the temps.

Looks nice but why not use the F-body metal tube which mounts and runs in the same location?

[3X24SPD]

Originally Posted by Rfish

Looks nice but why not use the F-body metal tube which mounts and runs in the same location?

Saw that, looked like a '68 only piece?
Wasn't sure it would work with the header tubes, and I seem to recall I couldn't even find one available for sale in a search- only images.
Quicker and much easier to model one and print it and had it ready to go in a couple hours.