Chevy Tri Five Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
133 Posts
Discussion Starter · #1 ·
I have TPI on my 406 small block. Just got new valve covers and want to understand the positive crankcase ventilation hose routing. I guess my real question is how does the crankcase ventilation work on TPI engines?

Thanks in advance for your usual expert advice.
 

·
Trifive Automotive Electrical Wiring Expert
Joined
·
27,084 Posts
It depends on your manifold, but it's the same as a carb. Everything behind the throttle plate is a vacuum. A PCV valve in the rocker cover, plumbed to a vacuum source will work. My ramjet has a place in the manifold for crankcase vent to vacuum with a PCV valve between them.
 
1 - 2 of 2 Posts
Top