[kchampagne]

Hey all,

So I am working on swapping my bad 305e with a running 305d in my 65 Suburban (thanks to Rustbucket providing the engine!). I plan to use the heads from my 305e on the 305d since they have recently been rebuilt (maybe they aren't compatible?). The 305d uses the closed type crankcase ventilation system that connects via hose (no flame arrestor though?) to the back of the intake. The 305e uses the filter type canister system and ventilation valves built into the heads under the valve covers.

First, are there pros and/or cons to using either crankcase ventilation system? To use the newer, rebuilt heads, should I swap the filter type canister onto the 305d? How hard is it to pop out the canister and press back into the block?

Maybe I am overthinking this, but I want to make sure I don't screw up crankcase breathing by combining the two. Thanks all! Ken