GM Experimental Prototype SBC 3x2 / Tripower setup

[Lynn]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: earntaz</div><div class="ubbcode-body">As a retired aircraft maintainer, I can tell you stainless steel-braided hose and red/blue aluminum fittings were used on AF jets I worked on back in the early '60s. So I am sure they were used for &quot;exotic&quot; applications such as this 3X2 setup. TAZ [img]<<GRAEMLIN_URL>>/flag.gif[/img] </div></div>

If you are saying a hot rodder could have used aftermarket AN fittings back in 69, I agree.
No reason to think GM would have used them. Plenty of 3x2 Pontiac, Olds, and Corvettes before 1969, and all used hard lines.