🔧 Spectre Performance 60183 Chrome Pipe Plug Kit: Stylish & Functional Review

Chrome bolts thread into the water jacket on the block and will not leak. Adds some light where a freshly painted Ford block needs a bit of paint. This is the only way I use them, but I'm sure there are other uses as well. I will be buying more soon.

I don't know what the heck they sent me but it was exactly from the description as can be . picture is what i have. These are some plastic caps. Smooth on the outside, no threads, definitely not a plug for my intake manifold. The last item I bought from this brand also broke in half so I guess that's the end of my purchase from Specter.

They are great but I couldn't use them. I think the sizes (1/8, 1/4, 3/8 and 1/2 inch) actually refer to the size of the hex key required for installation versus the actual plug diameter. My cylinder head had a 9mm (smooth) bore which required a plug. However, the "1/8 inch" (3mm) plug was the only one small enough to fit. I ended up pushing in the "freeze plug" instead of drilling and tapping a wider hole in the cylinder head.