Billet Aluminum Flywheel .308 Hemi Camshaft 3.308 Connecting Rod 70mm Flat Top Piston Performance Engine Upgrade Set for Predator 212cc Hemi Go Kart Mini Bike Parts

✅ 100% Brand New & High Quality

📏 Size: As shown in the pictures

✅ Fitment

Designed for 212cc Hemi Predator engines

🚀 Premium Performance Features

1. High-Lift Camshaft for Maximum Airflow

• Built around a .308 high-lift performance camshaft, significantly improves airflow and extends valve duration.
• Optimized for modified Hemi applications, delivers strong acceleration and top-end performance for competitive racing.

2. Stable High-RPM Valvetrain System

• 26lb performance valve springs ensure consistent valve control and reduce valve float under load.
• Balanced high-RPM setup, prioritizes both performance and durability for long-term racing use.

3. Reinforced Rotating Assembly

• 3.308” performance connecting rod with bearing set improves bottom-end strength and crankshaft stability.
• 70mm flat-top piston kit (rings + wrist pin) increases compression ratio for stronger torque and combustion efficiency.

4. Complete Sealing & Ignition Upgrade

• Full gasket & seal package ensures full rebuild-level engine sealing integrity.
• F7TC high-performance spark plug delivers stable combustion under higher compression and high-RPM operation.

5. Faster Response & Extended Engine Life

• Lightweight machined magnetic flywheel reduces rotational mass for quicker throttle response.
• Magnetic drain plug set captures metal debris to extend engine life during racing conditions.

📐 Camshaft Specifications (.308 Hemi Performance Profile)

Recommended Class: Modified Racing
Target RPM Range: ~7800–8200 RPM

• • Intake Lift: .308”
• • Exhaust Lift: .308”
• • Duration @ .050” (Intake): 244.2°
• • Duration @ .050” (Exhaust): 244.6°
• • Cam Centerline (Intake): 108° ATDC
• • Cam Centerline (Exhaust): 108° BTDC
• • Valve Spring Pressure: 26 lb (IN / EX)
• • Valve Lash (IN / EX): .003”
• • Ignition Timing Recommendation: 34° BTDC

Cam Timing Events

• • Intake Open: 53.5° BTDC
• • Intake Close: 91.0° ABDC
• • Exhaust Open: 91.0° BBDC
• • Exhaust Close: 55.1° ATDC
• • Valve Lift: .308” / .308”

This camshaft delivers strong mid-to-high RPM performance with stable, controllable operation when paired with 26lb valve springs.

🔩 Connecting Rod Specifications

• • Length: 3.308”
• • Recommended Torque: 150+ in/lbs
• • Installation Tool: 1/4” 12-point socket recommended

Upgraded rod improves bottom-end durability and crankshaft stability for reliable operation under modified camshaft loads.

🏁 Performance Summary

This Stage 4 “Racer .308” kit delivers:

• • Strong high-RPM power delivery with stable operation
• • Improved airflow and extended cam duration performance
• • Increased compression for better throttle response
• • Reinforced bottom-end durability for racing conditions
• • Lightweight flywheel for faster engine acceleration
• • Complete sealing system for full rebuild reliability

📦 Package Includes

• 1 x .308 High-Lift Performance Camshaft (Hemi)

• 2 x 26lb Performance Valve Springs

• 1 x 3.308” Performance Connecting Rod + Bearing Set

• 1 x 70mm Flat-Top Piston Kit (rings + wrist pin)

• 1 x Full Gasket & Seal Set

• 1 x F7TC High-Performance Spark Plug

• 1 x Lightweight Machined Magnetic Flywheel

• 1 x Magnetic Drain Plug Set (M10x1.25)

📝 Important Notes

Please confirm your engine model and original part specifications before ordering.

Please compare the appearance, shape and size with your original part before ordering.

If you have any questions, please contact us and we will reply as soon as possible.