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Discussion Starter · #1 ·
Are the ridges that form at the top of your cylenders just carbon build up or are they the cylender wall itself and when the piston rings wear down the cylender the ridges form?

Thanks

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Ryan
 

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The ridges Are where your pistons have worn down the cylinders itself, and not had enought travel to wear the ridge down. This is common in High mileage motors. They make a Cylinder Ridge Cutter to take care of it.

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350 TBI EFI 4speed 12bolt 3.73's
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My 69 Chevelle
 

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Technically it's where the "rings" stop traveling in the cylinder. Cutting tool is called a "Ridge reemer".
The pistons are tough to get out if this ridge is very pronounced.
This tool is expensive to purchase but you can rent it inexpensively for a one time deal.

FastSS396man

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69' SS396 Chevelle
L78 396/375hp
M-21 Close Ratio
10 year Resto
It's brand new again!
 
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