Problem ? ring end gap
#1
Problem ? ring end gap
hey guys, so i have been working on my 69 350 for awhile now, and the bore ended up being only about .015 over instead of .020 over (i have .020 pisons to go in). so we tryed recalibrating the boring bar and boring again, the piston fits in, but its a little loose. the ring end gap for the top ring at about 2 inches from the top of the bore, is .020. is this ok since the piston fits decently, or should i go to .030 pistons and .030 bore ? im planning on drag racing the car every once in awhile. thanks a lot
#2
hey guys, so i have been working on my 69 350 for awhile now, and the bore ended up being only about .015 over instead of .020 over (i have .020 pisons to go in). so we tryed recalibrating the boring bar and boring again, the piston fits in, but its a little loose. the ring end gap for the top ring at about 2 inches from the top of the bore, is .020. is this ok since the piston fits decently, or should i go to .030 pistons and .030 bore ? im planning on drag racing the car every once in awhile. thanks a lot
#4
They will be able to correctly fit each bore to an individual piston, using a power hone. This will eliminate the "can of worms" you are about to open.
Norm
#5
The cylynders should be honed even after boring them. Good point
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