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8900 Locking Header Bolt Kit for GM Small Block
✅ In stock
F
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 3, 2026 8:37 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.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️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
4/10
📝 Product Overview
🚚 Shipping
Free Shipping
Product Details
✓CHEVROLET LS SERIES HEADER KIT (12-PIECE): Designed specifically for Chevy LS1, LS2, and LS6 engines, the Model 8900 kit includes (12) 8mm-1.25 x 25mm metric locking bolts featuring a precise 6-point (6pt) double hex head to securely fasten your exhaust headers.
✓FAIL-SAFE MECHANICAL LOCKING: Manufactured by Stage 8, this patented active mechanical locking system provides a fail-safe solution that prevents fastener loosening even under extreme engine vibration when installed as directed.
✓PREVENTS EXHAUST LEAKS: Say goodbye to blown header gaskets. Engineered to withstand severe thermal expansion cycles, the heavy-duty hardware will not stretch when hot, ensuring your header flanges stay tightly sealed.
✓EASY INSTALLATION & FULLY REUSABLE: The precise 6-point (6pt) double hex head allows for practical wrenching and installation in tight engine bays. The entire locking mechanism is completely removable and perfectly reusable without losing any locking performance.
✓INSTANT VISUAL INSPECTION: No need to constantly get under the hood with a wrench to check for tightness. The active locking mechanism allows for quick and easy visual inspections, delivering ultimate peace of mind for your custom build.
⚙️ Specifications
Stage 8
Stage 8
LSI/LS6 8MM
8.6 ounces
8900
8900
Nickel
8900
Manufacturer
Stage 8
Brand
Stage 8
Model
LSI/LS6 8MM
Item Weight
8.6 ounces
Item model number
8900
Is Discontinued By Manufacturer
No
Exterior
Per Item Description