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Bob Gullett · 05-27-2020, 10:08 AM

Just was at the dyno Monday with a friends bracket motor. 383 SBC. The guy who did the motor used pistons with Line2Line coatings. All the clearances and assembly and break in was done as per the instructions from Line2Line. Horsepower was down. Changed oil 3 times and oil was black from the coating and the filter had coating material in it. Leakage ranged from 9-55%. Going to tear it down in the next couple days to see the reason but I'm sure the rings are damaged or gummed up from the coating.

05-27-2020, 10:08 AM	#11
Bob Gullett VIP Member Join Date: Mar 2002 Posts: 1,069 Likes: 42 Liked 414 Times in 92 Posts	Re: Piston Skirt Recoating Just was at the dyno Monday with a friends bracket motor. 383 SBC. The guy who did the motor used pistons with Line2Line coatings. All the clearances and assembly and break in was done as per the instructions from Line2Line. Horsepower was down. Changed oil 3 times and oil was black from the coating and the filter had coating material in it. Leakage ranged from 9-55%. Going to tear it down in the next couple days to see the reason but I'm sure the rings are damaged or gummed up from the coating. __________________ 68 Chevy11 327 F/S