Anyone have experience/video of motor running with 2618 pistons? I was told by the machine shop/builder that the motor is going to be noisy due to the higher silicone % and increased ptw clearance. It does not get quieter when at operating temp. The car did well on the dyno, just has a low oil pressure # at hot idle (8-9 with 15w-40) but it builds immediately with throttle, (60 psi cold start, 20 psi when it gets to idle). I can only assume the clearances are on the bigger side everywhere, causing the piston noise and low pressure at idle. I do plan to take it to the machine shop to have them listen to it. This is on a teksid .030, 12-15psi on pump gas. The block was already .030 from a Jasper reman, light honing was done prior to rebuild, same size bearings and pistons were used for the rebuild. This is just a weekend drag car/toy. The oil filter had no metal in it. Perhaps this was built "loose", so it could be run hard without too much break in....
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