JUN AUTO PISTON KIT FOR HONDA B16B B18C 1001M-H006

 

JUN AUTO PISTON KIT FOR HONDA B16B B18C 1001M-H006

Here’s a clear look at what the JUN AUTO Piston for Custom Kit (1001M-H006) piston kit for Honda B16B / B18C engines is and what advantages it offers compared to OEM pistons.

🔩 What This JUN Auto Piston Kit Is?

• A performance forged piston set designed specifically for the B16B & B18C DOHC VTEC engines.
• Manufactured by Cosworth Ltd. under JUN Auto’s specification — known for high-performance engines and motorsport collaboration.  
• Features forged aluminum pistons with a specific crown shape and dimensions that differ from OEM.  

(⚠️ Note: Official JUN Auto spec pages list the 1001M-H006 kit with pistons weighing ~368 g with 9.1 cc crown volume and convex dome shape.) 

🚀 Key Advantages Over OEM Pistons

✅ Stronger, Forged Construction

• OEM pistons are usually cast for everyday reliability, not high RPM or racing use.
• Forged pistons are denser and stronger, resisting cracking and deformation under high stress and heat.
  👉 This makes them far more robust for high RPM, tuned or boosted engines than stock parts.  

✅ Better for High RPM & High Load

• The JUN pistons are engineered to handle higher engine speeds and combustion pressures.
• They’re less likely to suffer blow-by or distortion under sustained high RPM operation, which is common in track or performance street engines. 

✅ Reduced Blow-By & Better Ring Seal

• The design and forging process can improve ring sealing at high rpm, reducing blow-by gas and making combustion more efficient.
• A better seal also promotes more consistent compression across cylinders when under load.  

✅ Higher Thermal & Mechanical Stability

• Racing-grade pistons resist thermal fatigue better than stock cast pistons.
• They handle sudden temperature changes and heavy throttle use without warping as quickly.  

⚙️ How It Compares to OEM

Feature	OEM Pistons	JUN Super Pistons
Material	Cast (everyday durability)	Forged high-strength aluminum
Performance	Stock to mild mods	High RPM and tuned engines
Heat resistance	Standard	Improved
Blow-by control	Adequate	Better with design
Ideal for	Daily driving	Racing/street high output

⚠️ When JUN Pistons Make the Most Sense

These are performance-oriented parts — best if you plan to:

• Increase power significantly
• Rev high frequently
• Use aggressive tuning strategies
• Take the car to tracks

For a stock or lightly modified engine, OEM pistons are usually sufficient. Upgrading pistons is mainly beneficial when building a high-stress performance engine rather than a simple overhaul.  

JUN AUTO PISTON KIT FOR HONDA B16B B18C 1001M-H006