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BTR Brian Tooley Racing LS1/LS6 MLS Cylinder Head Gasket Pair - Fits 4.8L 5.3L 5.7L Gen 3 LS Engines - Multi-Layer Steel Design - Replaces GM Part #12589226
✅ In stock
F
Grade
Analysis Confidence
100%
Price verified Sep 22, 2026 6:14 AM · 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.
- 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
- ➡️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
16/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Michigan Motorsports
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Pair of High-Performance MLS Head Gaskets – Includes two (2) BTR multi-layer steel (MLS) head gaskets BTR98544 , designed for precision sealing under high-compression and high-heat conditions.
✓Direct Fit for LS1, LS6 & 4.8–5.3L Gen 3 LS Engines – Perfect fit for 4.8L, 5.3L, and 5.7L engines, including LS1, LS6, LM7, L59, LR4, L33, and LS4.
✓Replaces GM Part #12589226 – Built to match OEM specs for reliable installation and performance while delivering aftermarket-grade durability.
✓Multi-Layer Steel Construction – Each gasket is constructed from premium MLS layers for maximum sealing strength and resistance to head lift, detonation, and high cylinder pressure.
✓Built for Boosted or High-Compression Builds – Ideal for naturally aspirated, turbocharged, or supercharged applications, and trusted by serious LS builders across the industry.
⚙️ Specifications
Brand
BTR Brian Tooley Racing
Material
Multi-Layer Steel
Item Thickness
0.05 inches
Color
Multicolor
Shape
Round
Manufacturer
BTR Brian Tooley Racing
Product Dimensions
6.3 x 6.61 x 16.14 inches
Item Weight
2 pounds
ASIN
B08RY9D8YD
Item model number
BTR98544
Is Discontinued By Manufacturer
No