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Cometic GM Gen II/ Mark IV BB 4.630in Bore .045in MLS (396 / 402 / 427 / 454) Head Gasket

Marsoni M251S
Sale price$98.94
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Cometic GM Gen II/ Mark IV BB 4.630in Bore .045in MLS (396 / 402 / 427 / 454) Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 045". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two
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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.
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4.3 ★★★★★
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Brittany Harman
Grantham, US
★★★★★ 5
Beagle’s Best Friend
Style: Super Crunch Stick, Style: Super Crunch Stick
This is my dog’s favorite toy! We’ve had it for about 6 months now. She plays with it and chews on it every single day. She takes it everywhere. Despite all her rough housing with it, it is still completely intact, so it is extremely durable! Love this thing! We call it her “crunchy carrot”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
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Verified Purchase
Vicki Petersen
Louisville, US
★★★★★ 4
Great
Style: EcoFetch
Works great and Finnley loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
SDkra
Lexington, US
★★★★★ 5
Great toy!
Style: Super Crunch Stick
Dog loves it! Works great , dog carries around and has not destroyed it.
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Reviewed in the United States on March 25, 2026
L
Verified Purchase
Ladybug27
Fort Morgan, US
★★★★★ 5
Best Balls Ever!!!
Size: Medium
These are the best balls ever! We have 2 very active ball loving dogs and these bounce very well and they actually hold up with active play and chewing. They still look brand new after daily use for months!
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Reviewed in the United States on May 15, 2026
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David
Port Orchard, US
★★★★★ 5
Finally a ball my power chewers cannot destroy
Size: Medium
I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off. One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again. If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
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Reviewed in the United States on November 22, 2025

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