The time is getting closer on taking my 350 down to the machine shop . And I was wondering about having the tops of the pistons coated. I will give you a little run down on the build up and you tell me if it is worth it. The 350 is a 73 and I have purchased a TA intake for it from Tim Stolaski( thanks Tim) also I have TA headers that are down being ceramic coated. The pistons are from TA in the 9.5 to 9.8 range .30 over (cast). I will be doing port and bowl work with polished chambers. The cam is TA 212 with teflon bearings. Polished and shot peened rods with arp bolts. I plan on using a unilite conversion on the stock distributor. Everything else will be new and clean. This car is my daily driver, and I have been the slowest guy in our club for three years running BUT NO MORE! SO about coating the pistons. I'm woried about detination on the crummy gas here in town, will coating the pistons help fight hot spots that cause ping? Or is it just a durability coating? I also plan on putting a little NOS on it for the our BUICK vs furd shootout. Thanks Clint:grin:
If your block is out of the car, I would also have it decked. Buick sunk the pistons around .050 to .055 in the hole, which hurts compression, even with "10 to 1" pistons, also it doesnt help at all with avoiding detonation. Have them check your deck height, and your probably good to go having .050 cut of the decks. I had mine decked .050 for a deck height of .005. Im using Sterling H522np pistons with are suppose to be 9.8 to 1 @ .020 deck height. My heads have been milled .030 also. I have no problem with detonation on 93 to 94 Sunoco gas. Im running TA's 310 cam, which Im sure helps. Good luck to yah:beer Also, use at least Hyper pistons, or better yet, forged, especially if your gonna spray it. Mark
ceramic coating the pistion tops can help protect them. It is a smart move as It can make a 220f headers feel like 65f to the touch.
If you are coating the piston tops, get the combustion chambers and exhaust ports done as well. Why go halfway? Rick(wrench)
Go to the Used Appliance Store near you to pick up a second-hand electric oven... Especially if your married! Spray-On horsepower Ceramic Coatings Space-age Coatings Do-it-Yourself Engine Coatings
Well you can DIY cheap. If you already has an air compressor and a kitchen oven to use. Its kind of cheap and real easy. Long as the parts will fit in the oven. I would not cure powder in an over I eat in but ceramic is fine. clean with easy off after if your conserned. I've put jugs in mine often to get sleeves out.
