.015" Oversize Top Ring for Raptor Flathead Engine Rebuilds

At the heart of every powerful stroke lies the top ring (SKU 555504), sized at .015" for Briggs Raptor flathead precision. It rides the upper groove, scraping oil while sealing gases to harness full explosive force.

During rebuilds, choosing the right oversize ring restores lost compression, countering cylinder wear from seasons of hard racing. This leads to sharper throttle response, where your kart surges forward without hesitation, eating up track distance.

• Constructed from durable alloy for resistance to high pressures and temperatures.
• Ensures even wear distribution, extending piston life and reducing maintenance frequency.
• Optimizes fuel burn for cleaner exhaust and better power-to-weight ratios in lightweight karts.

Kart tuners swear by this ring for its role in fine-tuning engines to shave precious seconds. Install it with proper gapping, and you'll feel the difference in torque from the starting line. It's not just about speed—it's about consistency, preventing power fades that plague under-maintained setups. For racers chasing personal bests, this top ring delivers the edge needed to dominate fields, turn by turn.