We have an update to an old Tech Tip on "How to Measure Cylinder Taper" by Jerry "Hotrod Lincoln" Herbison that was originally posted July 2017.
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You’ve disassembled the engine and the pistons are out ... You were careful in doing that, right? If there were some ridges at the top, the only correct way to remove a ring ridge is with a reamer designed specifically for that purpose -- Do that BEFORE you attempt to remove the piston so you don’t break a piston ring land by pounding them out.
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Read more (or print out - an easy two-pager) in the PDF. If you have any questions or comments about this Tech Tip, please feel free to post HERE in the Engine Shop Forum.
Attachments
Attached PDF document
cylinder-taper-2023.pdf (1.83 MB, 177 downloads)

Last edited by Phak1; 01/14/2025 2:25 PM.
Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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