Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Pistons and Piston Rings
United Engine & Machine Co
1 SET KB356.STD/1 SET 4000AM8.STD
SKU: U00B KB356KTM.STD
Advanced — 4+ hours
Overview
This standard (STD) size kit includes piston rings with a 5/64", 5/64", 3/16" configuration. The compression ratios vary depending on the cylinder head volume: 9.9:1 for 62cc, 9.7:1 for 64cc, 9.4:1 for 68cc, and 9.0:1 for 72cc. The pistons have a crown volume of +23.5cc and a compression height of 1.465 inches.
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B KB356KTM.STD |
Videos
Engine Building Part 2 - Gapping Rings, Installing Pistons in a 350 Chevy
Installing Pistons and Connecting Rod Assemblies (Engine Building 101)
Piston Rings: Types, Gapping, Prep And Break-In For The Home Engine Builder
How to Install Piston Rings | Engine Building 101
End Gap Mistakes That Will RUIN Your Engine
Small Block Chevy Engine Build: Piston Assembly (Part 5)
Small Block Chevy Engine Build: Piston Assembly (Part 4)
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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