Quote:
Originally Posted by steve25
Critical to any successful non profanity filled piston installation session is a good chamfer being on the top of the bore.
If it’s only .020” then your not going to have a fun time.
And also even with the compressor and chamfer being good if you have not rolled over all at least all the cylinder wall facing sharp corners of all the rings ( especially the steel oil rails) then that in itself can make installation a Pita.
And also another concern is the instant grooves those edges will make once the motor is fired the fresh grit that will come from that.
Another tip for installation is that if the top of your bores have valve notch chamfers then you want all the ring gaps set up on the pistons such that no gap lines up with the valve notch.
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Oh, and thanks for bringing that up. I’m putting rings on pistons today. Got a small, fine, chainsaw type file out and a piece of 220 for those outer gap edges.
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71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.
‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.