Im doing my first engine rebuild. Bought a used 2004 3.7 engine.

I do have a bore/cylinder gauge to check all points of the cylinders.

What are the engine cylinder specs for a 3.7?

At what diameter size do I go with an oversized piston ring?

At what point do I go with an over sized piston?

Im just asking right now...as far as I can tell the cylinders look good except for 1 and 2 they have a small ridge which I will remove with a reamer.

Thanks

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05 KJ Sport * 2.5 Rustys * 285/75 * Sway bar removed * HD cooling system
262k (original engine and trans)
Navajo Nation AZ, NM, UT

Oh man.

I have always wanted to do this! Dreamed about it. But never dropped the hammer.

I'll be watching this. Keep the updates rolling please

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2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --

The bore and stroke etc. are all in the factory service manual if you have one. If not I'm sure you can find a PDF version online..

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'02 Jeep Liberty Limited; 2.75" lift; OME 927/948; Bilstein 139168; KYB gas-a-just shocks; 1/4" spacer; Teraflex Bumpstops front; Moabs w/ 265/70/16s; thrush super turbo muffler

You can here http://www.colorado4wheel.com/manuals/Jeep/KJ/

Gyro