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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
Wiseco K634M865 Piston Kit - K24 w/ K20 Cylinder Head +5cc (12.5:1 Compression)Wiseco K634M865 Piston Kit Honda K24 w K20 Cylinder Head +5cc (Comp Ratio 12. 5: 1) Acura Honda K20 RSX S 2002 2006 Always check piston to valve clearance If using VTEC or like mechanisms check with longer duration higher lift lobe Always run at least . 030" piston to head clearance including gasket thickness If piston appears to be different than expected call to verify compatibility Also applicable to Acura Honda K24 & K24 (w K20 Cylinder Head) Most
Wiseco K634M865 Piston Kit - Honda K24 w/ K20 Cylinder Head +5cc (Comp Ratio 12.5:1)Acura / Honda K20 RSX-S 2002-2006
Always check piston to valve clearance
If using VTEC or like mechanisms - check with longer duration higher lift lobe
Always run at least .030" piston to head clearance including gasket thickness
If piston appears to be different than expected call to verify compatibility
Also applicable to Acura / Honda K24 & K24 (w/ K20 Cylinder Head)
Most Wiseco Pistons have an offset pin. Pins must be offset same as OEM for quietest operation. Optional pin upgrade available.
Product Specifications:
Bore Size: 86.50 / 3.405
Oversizes: .020
Stroke: 3.286 / 86
Rod Length: 5.472 / 139
Comp Height: 1.181 / 30
Head cc's: 50.5
Dome Dish: 5
Gasket Thickness: 0.025 / 0.630
Deck Clearance: 0.001- / 0.025-
Block Height: 8.347 / 212
Comp Ratio: 11.08
Pins (included): S618 (22mm)
Ring (included): 8650XX
Wiseco Pistons - Sport Compact Series: Wiseco is world renowned for their work building race winning pistons for compact engines featuring small bores multi-valves and high RPM applications for many years. Wiseco utilizes experience acquired from a diverse background of the most sophisticated engines in such venues as Formula 1 Indy Car Racing NHRA Pro Stock Bike AMA Superbike and AMA Motocross to design and manufacture the highest technology Sport Compact piston available.
Generous Valve Pocket designs that allow maximum flow around valve. Note: Piston to
valve clearance must be checked.
Piston Crown shapes designed to promote maximum Intake Charge efficiency thru
scavenging mixture “Cross Flow" during intake and exhaust valve overlap.
Pistons designed to optimize squish or quench during compression combustion cycle
event resulting in resistance to detonation and pre-ignition.
Complex Piston skirt profiles that reduce power robbing friction yet promote stability in
bore for optimum ring seal.
Precision machined ring grooves with proper orifice / accumulator volume using calculated
groove root diameters and axial widths featuring excellent surface finish and flatness
providing maximum ring seal and minimizes blow-by and oil consumption.
World class forging facility that utilizes the latest technologies featuring complex forged
shapes advanced materials and featured-aligned grain flow technology.
Piston weights listed may vary. All specs based on U.S. engine codes unless noted.
All Sport Compact pistons sold complete with rings pins and clips.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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 8 reviews
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Product Reviews
★★★★★ 5
Cute striped athletic tank
Size: Large, Color: Pink Purple Stripes
such a cute and comfortable athletic tank to wear for many activities!
The material is lightweight and breathable but is also so soft and makes wearing it super comfortable for any athletic activity or just for wearing casually on a hot summer’s day.
The fabric seems very high-quality and has some stretch to it. The tank top does fit true to size. The collar is a very cute detail and makes this tank top feel fun and flirty and feminine.
I love the pink stripes pattern. It looks cute tucked into a skirt or shorts. This is a cute tank top for Pickleball, tennis, golf, or simply just running errands.
This has washed well and I usually hang up to dry all of my athletic wardrobe. It does dry quickly and does not dry wrinkly even when just clipped up to dry.
I think it is a good value for the tank top that you get and definitely looks like it came from a sporty sports outlet and definitely doesn’t look or feel cheaply made. Very happy with this tank top and would definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 4
Good Quality, Runs Small
This top is just as described. Great color and quality. Fabric has some stretch. Would be great for golfing. I usually wear an XL, which is what I ordered. The shirt is very snug. I prefer tops be more loose so if you are the same, definitely size up! Good value though for the quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
LOVE this brand
Size: Medium, Color: White Blue Florals
Okay I am really falling in love with this brand I have a couple of shirts and dresses and pants and I absolutely adore all of them. The material all of it is so much better, such top quality and extremely soft and wonderful feeling up against your skin more so than you would ever think. The size is perfect I ordered a medium and I normally wear a medium, it is perfect for playing golf or tennis, it is breathable so as I run the wind cools me off. I like the way that the shirt looks and it stretches a bit so you can you know get it on but it does not lose its shape or anything like that. It washes and dries very well it keeps its shape and does not shrink and honestly in my opinion it it feels like it gets softer the more you wash it the more you wear it I don't know
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Pretty in pink!
Size: Small, Color: Pink White Florals
I ordered this top in the pink color, and it is absolutely lovely! The print is feminine and cheerful, making it perfect for golf, tennis, or any casual summer outing.
The fabric is soft, lightweight, and breathable, which is a must for warm weather. It does a great job keeping you comfortable, even on hot days, and the sleeveless design allows for easy movement.
My only note is that the fit runs a bit snug. If you’re between sizes or prefer a looser fit, you may want to consider sizing up. Other than that, it’s a very well-made top with a flattering style and beautiful color.
Overall, a pretty and comfortable addition to any warm-weather wardrobe! 💗⛳🎾☀️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 3
Lightweight, Great Quality, Fit Might not be Perfect.
Size: Medium, Color: Blue Plaid, Size: Medium, Color: Blue Plaid
Cute, comfortable and breathes like a spring breeze! The only complaint here is the fit. Several folks mentioned it not being a loose fit, we had the opposite problem, fit the chest and shoulders perfectly, but a bit baggy in the mid section. Tucked in, it kind of muffin tops out a bit, but loose it is lovely how much this thing breathes. Overall I think we are going to try a size down, but will update once we have a better handle on that. Quality wise, this shirt is great, strong, lightweight material that I can see lasting as long any other brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
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