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SPELAB Hardened Harmonic Balancer Damper Bolt Compatible with Chevrolet GM GEN III IV LS 4.8L 5.3L 6.0L 6.2L, Balancer Bolt & Assembly Lubricant
✅ In stock
F
Grade
Price verified Sep 21, 2026 4:04 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
SPELAB
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【Direct Fit Replacement】 Compatible with Chevrolet LS Gen III/IV (except LS7). 1997-2004 small block Gen III/IV (LS-based engines) 5.7L/350, 1999-2017 (LS-based engines) 4.8L/294, 1999-2017 (LS-based engines) 6.0L/364, 2001-2014 (LS-based engines) 5.3L/325, 2008-2017 (LS-based engines) 6.2L/376, this part is engineered to enhance your vehicle’s performance. Designed to maximize your vehicle’s performance.Please refer to the vehicle compatibility list above for accurate fitment.
✓【Installation reminder】 Place the washers over the studs and onto the dry, clean spot faces of the cylinder head.The stamped side of the washer goes down against the cylinder head. This stamped surface grips the cyinder head preventing the washer from spinning while the nut is belng torqued. The result is accurate and consistent clamp load.（NOTE If you have 2 different sized body bolts, it will not fit）
✓【Kit Includes】 The Cylinder Head Bolts kit contains 1*Plum blossom bolt Φ16MM, thread M16*2, length 135MM& 1*Washer 50*16.2*7MM& 1*Lubricating grease& 1*Neutral instruction manual. The head stud kit black oxide finish provides extra protection against wear and tear, while hardened parallel washers ensure uniform load distribution and precise torque readings.
✓【ULTRA STRENGTH】 Manufactured from 42CrMo material, these head studs deliver superior tensile strength, far surpassing 8740 chromoly steel studs with a rating of 220,000 psi. Threads are rolled post-heat treatment to maximize fatigue resistance, ensuring sufficient clamping force to prevent cylinder head lifting
✓【Optimum Design】At SPELAB, we prioritize exceptional quality, with comprehensive inspections to ensure the highest level of product performance. This kit is backed by a lifetime warranty, covering replacement in case of manufacturing defects, providing peace of mind and long-term protection for your vehicle
⚙️ Specifications
Material
Stainless Steel
Thread Size
M16 x 2
Exterior Finish
Black Oxide
Manufacturer Grade
Heavy-duty
Head Style
Bugle
Screw Head Style
Bugle
Color
Black
Fastener Type
Stud Bolt
Thread Type
Unc
Thread Style
Left Hand
Item Hardness
Rockwell C30
