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Wildcat 223 Stock 70mm Flat Top Piston Assembly Kit
Wildcat 223 Stock 70mm Flat Top Piston Assembly
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Wildcat 223 Stock 70mm Flat Top Piston Assembly Kit

Part Number: 34004-00075-00-K
Online Price: $19.99
Wildcat 70mm Flat Top Piston Kit – Lightweight High-Performance for 223 Clone Engines
Availability: Out of Stock.

Description

Wildcat 70mm Flat Top Piston Kit – Lightweight Performance for 58mm Stroke Cranks


Upgrade your engine’s performance with the Wildcat 70mm Flat Top Piston, specifically engineered for use with 58mm stroke crankshafts and stock-length connecting rods. This lightweight, short-skirt piston offers superior fitment and reduced rotational mass compared to standard 70mm factory pistons used in Predator and Tillotson engines.


Whether you're building a Wildcat 223, a custom clone engine, or adapting a 58mm crank to another platform, this piston delivers improved clearance, lighter weight, and reliable high-RPM performance.


Piston Design Features:

  • Shorter skirt for improved crankshaft clearance and reduced friction
  • Lighter weight than OEM Predator or Tillotson pistons for quicker revs
  • Compatible with Honda/Clone-style rods and 18mm wrist pins
  • Ideal for use in engines with 58mm stroke crankshafts
  • Flat top crown for optimized compression and combustion efficiency

Note: Not compatible with Ducar/Tillotson 212E or Predator 224 rods due to different wrist pin sizing. Requires a Honda/Clone-based connecting rod.


Wildcat 70mm Piston Kit Specifications:

Piston:

  • Crown Type: Flat Top
  • Compression Height: 0.8835" (22.45mm)
  • Diameter: 2.7535" (69.95mm)
  • Skirt Length: 1.693" (43mm)
  • Weight (Piston Only): 141.9g

Wrist Pin:

  • Diameter: 0.7075" (17.97mm)
  • Length: 2.121" (53.9mm)
  • Wall Thickness: 0.079" (2mm)
  • Weight (with clips): 41.8g

Piston Ring Set:

  • Top Ring: 1.0mm
  • Second Ring: 1.0mm
  • Oil Ring Pack: 2.5mm
  • Total Ring Weight: 12g


Weight Comparison: Wildcat vs. Predator

Piston Type

Average Weight

Wildcat 70mm Flat Top

142g

Predator 212 Hemi Flat Top

158g

Lose over 16 grams of reciprocating mass compared to the Predator 212 Hemi piston, improving throttle response and engine balance—especially at higher RPMs.


Kit Includes:

  • 70mm Flat Top Piston
  • Complete Piston Ring Set (1mm/1mm/2.5mm)
  • 18mm Wrist Pin
  • Circlips

FAQ

What engines does this 70mm piston fit?

This piston is designed for the Wildcat 223 and similar small block clone engines with a 70mm Bore and Honda/Clone-style connecting rods. It will not fit engines like the Ducar/Tillotson 212E or Predator 224 with larger wrist pins.


 What connecting rod is required for this piston?

You must use a Honda/Clone-based billet connecting rod that accepts an 18mm wrist pin (0.7086"). It is not compatible with .715" wrist pin rods found in some Ducar, Tillotson, or Predator 224 engines.


How much lighter is this piston compared to a Predator 212 Hemi piston?

The Wildcat 70mm piston weighs approximately 142 grams, while a Predator 212 Hemi flat top piston weighs around 158 grams—a reduction of 16g in reciprocating weight for improved engine response.


Is this piston compatible with a 58mm stroke crankshaft?

Yes, it’s specifically engineered for 58mm stroke setups. The shorter skirt and compression height ensure proper deck height and piston clearance when paired with a stock-length rod.


What’s included in the piston kit?

  • 70mm Flat Top Piston
  • Piston Ring Set (1mm/1mm/2.5mm)
  • Wrist Pin (17.97mm)
  • Circlips


What is the compression height of the piston?

The compression (pin) height is 0.8835" (22.45mm), designed to align with the deck height in most 223cc clone engines using a 58mm crank and standard rod length.


Will this piston work in a Predator 212 engine?

Physically it fits the bore size, but it's optimized for 58mm stroke crankshafts. To use it in a Predator 212, you must upgrade the rod and crank to match the compression geometry. 

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