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Has anyone ever used DSS Racing pistons? Summit sells them, but I haven't seen any reviews on them yet. I did notice that they don't have the coating on the skirts like the stock gen-4 pistons. It seems like the coatings help. I'm not sure why anyone would make a piston with out that.
I'm currently building a 6.0L for boost, and I need pistons. I was leaning toward the Summit pistons, but the rings are kinda expensive compared to the rest. What is the popular opinion on pistons and the skirt coating?
Has anyone ever used DSS Racing pistons? Summit sells them, but I haven't seen any reviews on them yet. I did notice that they don't have the coating on the skirts like the stock gen-4 pistons. It seems like the coatings help. I'm not sure why anyone would make a piston with out that.
I'm currently building a 6.0L for boost, and I need pistons. I was leaning toward the Summit pistons, but the rings are kinda expensive compared to the rest. What is the popular opinion on pistons and the skirt coating?
DSS pistons are fine for boost. The coating is worthless, don't believe that bs. If you are gauging pistons by how expensive the rings are, you need to do more research before you even think about buying.
Well, the engine should be getting bored tomorrow. I'll have to decide on pistons then.
If you need to blindly get good boost pistons the Summit brand Wisecos are pretty good. For cheap crap that works, I like the DSS it Icons. I am building a budget road race LS6 ,for a Z06 w/ Icons right now. Get some of the Mahle Power pack rings w/ Napier second ring.. Real nice rings for the $$$.
Pay attention to the pins. I think DSS used to come with some relatively flimsy thin wall pins. Wiseco and Summit supply pins that are rated to about 750hp, but you can upgrade them.
I had to get it bored first. The cylinders were rusted/pitted too deep to clean up with a flex hone. I didn't know how deep the rust/pitting went, so I took the block to get bored. As it turned out, .030" was enough to get the rust out. Once the machine shop told me how much they bored it, I ordered the pistons in that size. They currently have the pistons and the rest of the rotating assembly. Once they get to it, they will do a final hone on the cylinders to match the piston size with enough tolerance between the two.
You should definitely have the pistons before a final hone. You don't always need or want to have the pistons before boring the block. Bore cylinders, get pistons, final hone, in that order.
Just thought I would provide an update. The machine shop had to hone three cylinders to a different size than the rest. Three of the (DSS Racing) pistons were a slightly different bore size. It wasn't a huge difference, but the machine shop thought it was enough to hone the cylinders to match. I got the short block together, and everything fits just fine.
Just thought I would provide an update. The machine shop had to hone three cylinders to a different size than the rest. Three of the (DSS Racing) pistons were a slightly different bore size. It wasn't a huge difference, but the machine shop thought it was enough to hone the cylinders to match. I got the short block together, and everything fits just fine.
Good on that shop to catch that sizing issue. Not many good shops left these days. Looking good sir.
03-20-2023, 06:16 PM
DSS Racing pistons? 
