Description
Product Overview
The YCQDDA Engine Starter Bolt Kit is engineered for LS series engines spanning 1997 to 2014. Crafted from premium grade 10.9 steel, each bolt delivers exceptional tensile strength and durability. The integrated flanged heads remove the requirement for separate washers, simplifying installation. A robust Dacromet coating shields the bolts from moisture, salt spray, and high temperatures, ensuring long‑term reliability in harsh environments. The kit includes two long bolts and one short bolt, all conforming to JIS specifications for precise fitment.
Usage
Designed for automotive enthusiasts, professional mechanics, and performance rebuilds, these bolts excel in both street and track applications. Ideal for replacing worn or corroded starter bolts on 4.8L, 5.3L, 6.0L, and 6.2L LS engines, the kit withstands high‑heat zones around the starter motor. Whether performing a routine maintenance service or a high‑performance upgrade, the flanged design ensures a secure, vibration‑free connection.

Why Choose Us
YCQDDA combines rigorous material selection with advanced coating technology. Our bolts undergo heat treatment to achieve grade 10.9 strength, surpassing standard automotive fasteners. The Dacromet process creates a hard, corrosion‑resistant surface that outperforms conventional zinc or phosphate finishes. Backed by a 12‑month warranty and a hassle‑free return policy, you receive confidence alongside quality.
Key Features
- Grade 10.9 high‑strength steel for maximum torque capacity
- Dacromet coating provides superior resistance to rust and heat
- Integrated flanged heads eliminate the need for extra washers
- JIS specification ensures precise fit for LS1, LS2, LS3, LS6, LS7, LS9 engines
- Includes two long bolts and one short bolt for complete starter assembly
FAQ
What engines are compatible with this bolt kit?
The kit fits LS series engines from 1997‑2014, including LS1, LS2, LS3, LS6, LS7, LS9, and the 4.8L, 5.3L, 6.0L, and 6.2L variants.
Do I need washers with these bolts?
No. Each bolt features an integrated flanged head, providing a secure bearing surface without additional washers.
How does the Dacromet coating compare to zinc plating?
Dacromet creates a hard, ceramic‑like layer that offers far greater corrosion resistance and heat tolerance than traditional zinc or phosphate coatings, making it ideal for high‑temperature engine environments.
Can I use these bolts for a performance rebuild?
Absolutely. Their high tensile strength and corrosion‑resistant coating make them suitable for both daily driving and high‑performance applications where reliability is critical.
What warranty does YCQDDA provide?
The bolts are covered by a 12‑month warranty. If you encounter any defects, you can return the product for a full refund or replacement.




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