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Engines and Components› Pistons and Piston Rings

KB PERFORMANCE PISTONS

SBM 360 F/T Piston Set 4.060 Bore -5cc

$573.44 $441.55 Save $131.89

SKU: K02K KB107.060

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In Stock
Ships by Sep 19
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$100 Minimum Order
Non-Returnable Item
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Overview

The KB Performance Pistons KB107-060 is a set of eight hypereutectic pistons designed for high-performance applications. These pistons are constructed from a low-expansion 390 aluminum alloy with 16% silicon, allowing for tighter running clearance. They feature fully machined heads and valve reliefs, CNC-machined pin bores, an accumulator groove for improved ring seal, machined oil returns, and diamond-finished skirts with mini grooves to reduce scuffing.
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Part #: KB107.060

Piston - KB Series - 4.060 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Mopar - Set of 8

Vehicle Symptoms
  • Engine knocking or pinging under load
  • Excessive oil consumption
  • Loss of power and compression
  • Misfire at idle or acceleration
  • Blue smoke from exhaust
Diagnostic Codes
  • P0300 – Random or multiple cylinder misfire Det
  • P0301 – Cylinder 1 misfire Det
  • P0302 – Cylinder 2 misfire Det
  • P0303 – Cylinder 3 misfire Det
  • P0304 – Cylinder 4 misfire Det
  • P0305 – Cylinder 5 misfire Det
  • P0306 – Cylinder 6 misfire Det
  • P0307 – Cylinder 7 misfire Det
  • P0308 – Cylinder 8 misfire Det
Relevant Conversations
  • Engine knocking after rebuild
  • Low compression on cylinder 3 causes
  • Best hypereutectic pistons for small block Mopar
  • KB107.060 piston set review
  • Symptoms of worn piston rings vs pistons
  • P0300 misfire after head gasket replacement
  • How to choose pistons for street performance
  • KB Performance Pistons KB107.060 install tips
  • Piston slap noise vs rod knock
  • Replacing pistons without removing engine?

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.

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Specifications

BrandKB PERFORMANCE PISTONS
Part NumberK02K KB107.060
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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