409 intake breather tube

[ketters55]

I know someone can answer this question cuz you guys have been a lot of help in the past so THANKS IN ADVANCE. Do i need to use the breather tube on the back of the 409 truck motor i'm building or can i just vent the engine thru the oil filler tube? Once again thanks for any info.

Ketters 55

 

[Fathead Racing]

You need to have air moving through the engine to keep the oil mist and blowby impurities from collecting inside the engine. A stock type draft tube off the back of the manifold or a PCV in place of the tube is recomended in addition to the mentioned oil breather type cap.

 

[Ronnie Russell]

ketters55,,,,,,, You definetly need to use the manifold vent , either a road draft tube or pcv system. The oil filler tube is not enough. Most of the members use a pcv system and is easy to hook up.

 

[ketters55]

You need to have air moving through the engine to keep the oil mist and blowby impurities from collecting inside the engine. A stock type draft tube off the back of the manifold or a PCV in place of the tube is recomended in addition to the mentioned oil breather type cap.

Fatride do i run the pcv system to the carb base?? ........I'm running 3x2s and don't remember if there is a port on the center carb base??? Thanks Again.

 

[Fathead Racing]

http://www.mr409.com/faq.html See # 13.

I ran my hose to the center carb base. I know I have my power brake hose ran to the base of the rear carb and the PCV hose running to the base of the center carb. Must be plugs in all three bases!