Wiseco Mitsu 4G64 w/4G63 Heads 10.5:1 E85 Single Piston

Wiseco Mitsu 4G64 w/4G63 Heads 10.5:1 E85 Single Piston

Marsoni

M251S

$140.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco Mitsu 4G64 w/4G63 Heads 10.5:1 E85 Single PistonProfessional Series forged racing pistons from Wiseco are no expense spared pistons designed for the serious racers and builders. Packed full of custom level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco? s Professional Series.

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I'M AMENDING THIS REVIEW AND ADJUSTING THE RATING UPWARD! Though it took my dog a little while to adjust to how differently this ball behaves, HE LOVES IT NOW. I wish I could give you a sense of how enjoyable and comically entertaining it is to play with him using it. ORIG. REVIEW: Bought this for a little 8 lb. aggressive chewer who loves to play fetch. I initially bought the 2" Chuckit! Ultra ball previously. It is the most amazingly durable product I've found for this pup. Very firm, but not hard on his teeth. He's very quick and agile, so I thought he would like the eye-mouth coordination challenge of a ball that changes direction suddenly. I guess my only disappointment with the product is that the ball is hollow instead of having a solid core like the Ultra ball, so he doesn't enjoy chomping down on it the same way. The erratic bounce feature is entertaining, but the pup is a little skittish, so he was intimidated at first. He's warmed up to it, but not with the same enthusiasm as the Ultra ball. Having said all this, I don't fault the product for the rating I gave it. It is a quality-made product that performs as advertised. I just didn't anticipate that my dog would be less enthusiastic than I thought.

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Reviewed in the United States on June 26, 2016

Verified Purchase

Omaha, US

★★★★★ 5

Awesome

Color: Green, Size: Large (3.0 in, Pack of 1)

Love all the chuckit balls and products and so does my dog. Very durable

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Reviewed in the United States on March 2, 2026

Verified Purchase

Johnathan Robinson

Battle Creek, US

★★★★★ 5

Highly entertained golden retriever!

Color: Green, Size: Large (3.0 in, Pack of 1), Color: Green, Size: Large (3.0 in, Pack of 1)

My golden retriever spends hours chasing this ball. Its erratic bounce pattern keeps him engaged and guessing where to chase the ball. It is durable and stands up to chewing well.

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Reviewed in the United States on January 24, 2026