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Description
Cometic GM LS1 SB 4.100in Bore .040in MLS-5 Head GasketEnhance your engine's performance and reliability with the Cometic GM LS1 SB 4. 100in Bore . 040in MLS 5 Head Gasket. Designed specifically for GM LS1 engines, this head gasket provides an exceptional seal that can withstand high pressure and temperature conditions found in high performance and racing applications. Crafted to precise specifications, it ensures optimal compatibility and durability. The MLS 5 design incorporates multiple layers of steel
Enhance your engine's performance and reliability with the Cometic GM LS1 SB 4.100in Bore .040in MLS-5 Head Gasket. Designed specifically for GM LS1 engines, this head gasket provides an exceptional seal that can withstand high pressure and temperature conditions found in high-performance and racing applications. Crafted to precise specifications, it ensures optimal compatibility and durability.The MLS-5 design incorporates multiple layers of steel to offer superior structural integrity and sealing capabilities, making it ideal for both street and track use. Its .040-inch thickness is tuned for applications demanding improved compression and reliability under high stress conditions.
This head gasket is engineered to prevent leaks and maintain the correct compression ratio, aiding in maximizing your engine's power and efficiency. Easy to install and built by the trusted brand Cometic Gasket, it meets the rigorous demands of enthusiasts and professionals alike.
Whether you are upgrading, rebuilding, or fine-tuning your V8 or LS1 powered vehicle, this head gasket is a reliable choice for lasting performance and peace of mind.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Perfect for Aggressive Chewers
Color: Blue-Green-Orange
I've been looking for toys my German Shepherd puppies can't tear apart or chew into little bits within minutes. These are tough enough to stand up to them and have the added benefit of helping their teeth with the little surface nubs. This is the second set I've purchased - not because the puppies destroyed them, but because they needed a set for inside as well as outside. I HIGHLY recommend these toys if your dog is a destruction machine!!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Durable, sensory texture
Color: Blue-Green-Orange
These are fantastic. They are durable and high quality. My dog loves the sensory texture and they satisfy his aggressive chewing. I've bought other high-end, popular brands and he chewed through it in less than two hours. I would definitely buy these again (if I even had to)!
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Reviewed in the United States on August 30, 2025
★★★★★ 5
Best purchase
Color: Blue-Green-Orange
These are by far one of the best toys for my aggressive chewer. My pitbull mix loves the football & ball, gave the other toy to my niece's dog. Bought them in Nov/Dec and they have held up great, still look new. I was upset when I saw they are no longer available. I would have purchased more to have some for specific outdoor use.
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Reviewed in the United States on April 20, 2026
★★★★★ 4
Good buy
Color: Blue-Green-Orange
Babies didn't use them. Too tough for their mouths. They are to small. Good for a bigger puppy.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Mastiff mix puppy loves them
Color: Blue-Green-Orange
I have experience with large working dog breeds, and I've got a mastiff lab mix puppy, who at 5 months weighs 50 pounds and is teething hard, and chews on everything. Most chew toys I've tried broke within a few minutes, but these have held up. I like that the ones I received are hollow, so I can put puppy kibbles inside them to keep the dog busy in her crate, and slow her eating so she doesn't scarf down her meals and get sick. The hole is small, but I feed small sized "taste of the Wild" brand kibbles, and they would pour out of Kong toys within seconds. I have recommended them to other puppy owners.
My dog isn't an aggressive chewer, but for a teething puppy, these toys do seem to be ideal.
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Reviewed in the United States on May 9, 2022