1968-1972 big block air cleaner breather hose

[Warren F.]

The original vent hose is part #3919891. It was a molded hose with a yellow stripe running lengthwise along the inside curvature side. The outside near the end that connects to the metal elbow in the rocker arm cover is stenciled GM [] (that's suppose to be a square) with 3919891 underneath.

First I'd like to be sure this is an original configuration, second does anybody make a proper exact reproduction of this?

I've scoured through the internet and Corvette vendors and they all seem to carry the same hose configuration and stenciling but it doesn't look to be the proper length or have the above configured stenciling. Doc Rebuild seems to carry a GM hose that looks to be more the right length but doesn't have the original stenciling either. Thanks for any help with this.

[Dick W.]

Re: 1968-1972 big block air cleaner breather hose

Warren, when we were doing restorations, we ended up having stamps made for a number of pieces. That is probably what you will have to do for that hose