Parts/Engines & fuel/Engine parts/Nova Engines .21 Engine Underhead Shim (4) (0.15mm)
Nova Engines .21 Engine Underhead Shim (4) (0.15mm)
Nova Engines

Nova Engines .21 Engine Underhead Shim (4) (0.15mm)

Part # NVE0501002
Where to buy
$11.75
AMain Hobbies
Seen Oct 12, 2026
$11.75Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Shim Overview:

The Nova Engines .21 Engine Underhead Shim is a must-have tuning component for racers looking to fine-tune their engine performance. Designed for precision adjustments, this shim allows you to optimize combustion characteristics based on your specific setup.

About the Shims


Precision Engine Tuning Control

Underhead shims play a critical role in adjusting engine compression, allowing you to dial in performance for maximum efficiency and power. By adding or removing shims, you can adapt your engine to suit temperature changes, humidity levels, and nitro content, helping maintain consistent performance. Built for .21 engines, this shim ensures a precise fit and reliable sealing, making it an effective and simple way to optimize your engine’s output.

Features:

  • Designed for .21 nitro engines
  • Enables precise compression tuning
  • Adapts to weather and track conditions
  • Optimizes performance for different nitro percentages
  • Thin and lightweight design
  • Ensures proper engine sealing

Includes:

  • (4) .21 Engine Underhead Shim (0.15mm)
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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