🔌 ICT Billet LS1 LS Exhaust Manifold Plug Cap: LSX Engine Test with Dust Spill-Free Technology (Product Code: 551735) Review

Bought some blocks from a junkyard and used them along with the matching inlet caps to seal the cylinders during a pressure wash.

Perfect fit and O-ring to protect against dust and moisture. It's much better than stuffing paper towels into the openings or putting tape over them.

I use an off-plate exhaust port block alongside an off-plate intake port block to pressure flush the engines and keep dirt off the heads. They are also good for mounting engines, ensuring nothing gets caught in the intake and exhaust ports.

Finally unpacked and installed on my LQ9 which was stored under a tarp. After removing the rusty, deformed exhaust manifolds, I saw that some of the valve stems had already developed light surface rust. This is an extremely high quality product with perfectly fitting o-rings and the bolts supplied were of a better quality than those used by GM. Reassure me, I no longer worry about moisture getting into the bottle through an open valve. Thank you seller for keeping this item in stock.