283 sbc pcv conversion
 

okay on my friends 66 chevy el camino we're doing an intake manifold swap .we also decided to update the pcv system from the original under intake manifold breather to the more modern system.okay now after removing that can/breather from the lifter valley area this left us with a hole needing to be plugged there.so what size freeze plug can be installed to seal up that opening https://www.yenko.net/ubbthreads/imag...lins/dunno.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: 283 sbc pcv conversion
 

Measure it, or one of those rubber expandable ones with the nut on top.