【Product Highlight】

Precision CNC machined 3/8" steel tool kit, works on/off engine head for LS cathedral port platforms. Matches premium tool performance at a budget price, with extra hardware included. Pneumatic air fitting design holds valves closed via compressed air—avoids engine damage during spring replacement!

【Core Features】

✅ Dual use (on/off engine cylinder heads)

✅ 14mm/18mm air fitting + 1/4" female NPT (fits all LS platforms)

✅ 10.9 bolts/12.9 studs/nuts + B7 grade hardware (extreme durability)

✅ Compressed air secures valves (cylinder at TDC during use)

✅ Exact fit for LS cathedral port heads (no modification needed)

【Specifications】

Material: Heavy-Duty Metal

Color: Silver + Black

Condition: 100% Brand New

【Fitment】

Universal for LS cathedral port cylinder heads:

LS1/LS2/LS6/LQ4/LQ9 | 5.3L/5.7L/6.0L | All LS cathedral port variations

Confirm your engine head type before purchase

【Package Included】

1 x Complete LS Valve Spring Compressor Tool Kit (as shown in images)

【Important Warnings】

⚠️ Always wear eye protection when changing valve springs

⚠️ Maintain air pressure in cylinder (on-engine use) / Align cylinder to TDC

⚠️ No installation manual included (basic mechanical knowledge required)