Well Known Member
Supporting Member 7
Hi everyone, I just joined and would like to ask a question. I have a '61 348 that I bored and stroked to 434 cubes. I'm running the Edelbrock aluminum heads and the single carb. aluminum intake. The down draft tube has been eliminated and the only breathing the crankcase does is through the oil filler tube with a push on oil breather cap thats located on the intake. I read something from Edelbrock that states this is perfectly fine but I'm not so sure. Recently, I was at a car show and a guy had alot of 348-409 stuff for sale. I saw some plain valve covers and then some he said were for a 409 and these had oil breathers incorporated into them. For some reason they didn't look factory to me. The workmanship didn't look good. Seeing these got me thinking about my set up. I don't mean to question Edelbrock or their engineering, but I'm really wondering about the crankcase venting/breathing of my motor. Would any of you have any experience/ideas re. this?? Thank you very much, Carmine.