Piston & Ring Kit - Big Bore Oversize - 81mm

Piston & Ring Kit - Big Bore Oversize - 81mm

Marsoni

M251S

$145.00

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

Piston & Ring Kit - Big Bore Oversize - 81mmXS Performance 1st. Oversize (81mm) Forged Big Bore Piston Kit. Piston includes ring set for 1 piston, piston pin(1) and pin clips(2). Forged Piston features: 1. Valve pockets cut for large valves. 2. Mos2 treated piston skirts. 3. Oil channel for enhanced wrist pin oiling. 4. 20mm. piston pins that are internally tapered to ends for weight reduction. 5. Lightweight 9: 1 piston assembly weight of approx. 340 Grams. Fits to 1974 84 447 type engines

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Solid quality. My Doberman is a power chewer and I am looking for a toy that he can't destroy in 2 seconds. If a ball lasts more than an hour it is a miracle. It has a sturdy design and is more heavy weight than the other "non-destructible" balls he has. He has only had his ball for one day so we will see how long this ball lasts him. It is the size of a tennis ball, firm, little to no bounce, and seems built for heavy chewing.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 30, 2026

Verified Purchase

Scott Gromaski

Charlottesville, US

★★★★★ 5

Great Product, 2 years and running!

Color: Onyx Black - Most Durable

It’s been almost 2 years and my dogs haven’t destroyed them yet. I have a Pitbull and a Pit/Cosro mix. They destroy every toy we’ve given them, except these toys. Great product 100% worth the money

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 29, 2026