Where to get oil bypass valves

[MaxPF]

My GM dealer says the oil bypass valves (the ones pressed into the passages on the oil filter pad) are no longer available. Do any vendors or anyone else know where I can get them? Otherwise, I will have to make adapters to use the smaller diameter valves used in the 4.3 V6 and (I believe) the newer LS-type engines...

Thanks,
Greg

[JohnC]

What would GEP do?

[MaxPF]

Well, either they have a source for the original large-diameter valve, or they are machining the new blocks to accept the smaller one.

[jggiedeman]

Try P/N 25014006 with your dealer. It's available. Block uses two of them. I purchased a set for an old 6.2 I had. It needed two different sizes but both were available and they also had the special cap/plug that covered the one recessed into the block.

[MaxPF]

Those are the part # I have. They are smaller in diameter, and simply fall into the holes in the block. It's no big deal - I will make adapters out of a couple expansion plugs.