Front welch plug #%#^@
Its a great product. Gives you zero chance of leakage, and when you rebuild next time (a lot of us do) it comes right out. The front cover actually holds it in. I hate those stupid Oem expansion plugs. Hard to believe that it took someone 20 years to Come up with a better way to control oil flow in the LS platform.
I'd never feel good about a piece of wood or cork being hammered in there.
And OP to answer your question things are only easy to find when a lot of that item is sold. How often are people searching for and buying 41/64 ths plugs? Pretty much never.
And also, for who ever said leaking is not an issue since it’s a sealed system, why not just skip the plugs all together?
The tap is available cheaper than I thought: https://www.homedepot.com/p/Drill-Am...B&gclsrc=aw.ds
Take my word for it, though, it's gonna be a real fight getting that thing threaded; due to the nature of pipe thread, it just gets harder and harder to turn the deeper it goes.
Get your breaker bar and cheater pipe out.
The Best V8 Stories One Small Block at Time
The tap is available cheaper than I thought: https://www.homedepot.com/p/Drill-Am...B&gclsrc=aw.ds
Take my word for it, though, it's gonna be a real fight getting that thing threaded; due to the nature of pipe thread, it just gets harder and harder to turn the deeper it goes.
Get your breaker bar and cheater pipe out.
Don't go crazy there, end up cracking the block, the pipe threads expand further the further you go in, eventually something has to give. No need to go deep, just deep enough to thread in the plug.
Last edited by Rick5.3; Nov 7, 2018 at 12:45 PM.
From there site










