$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: VALUE

Make/Model Search
Make/Engine Search

Brands
Savings Central
Contact Us
Help Center
1-800-230-3030

Call Us
My Garage
Wish List
Order Status & Returns

Welcome
My Account

Order Status

Wish List
Savings Central
Shop by Brand
Shop Your Passion
- Shop Your Passion
- Truck / SUV
  
  Jeep®
  
  Restoration
  
  Stock Replacement
  
  Late Model Muscle
  
  Tools
  
  Gifts, Clothing, & More
  
  Circle Track
  
  Street Rod
  
  Powersports
  
  Paint & Body
  
  Marine
  
  Jr Dragster
Gift Cards
My Garage
See Our Catalogs
News & Events
Career Opportunities
Contact Us
Help Center
1-800-230-3030 1-800-230-3030
New Products
Shop by Make/Model
Sign In

Search Make/Model

Search Make/Engine

Sign In

Welcome
Account Dashboard
Profile
Order Status & Returns
Buy It Again
Wish List
Rewards Program
Gift Cards & Summit Bucks
Address Book
My Garage Settings
Email Preferences
Text Notifications
My Reviews
My Questions
Catalogs
Tax Exemption
Sign In

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: VALUE

Summit Racing SpeedCard - learn how to get 10% back - Get Details!

Filters

In Stock
- In Stock Items. Ships Today. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (8) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (10) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Part Type
- Powersports Piston and Ring Kits (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powersports Top End Engine Kits (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powersports Engine Rebuild Kits (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Brand
- Namura (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Cylinder Works (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Vertex Pistons (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Price Range
Filter Options
- PowerSports (8)
Savings Central
- Clearance (1)

Selected Filters

Filter Results by Vehicle

Loading...

Home
Engines & Components
Engine Kits & Rotating Assemblies
Product Results

Availability

- In Stock Items. Ships Today. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (8) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (10) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Part Type
- Powersports Piston and Ring Kits (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powersports Top End Engine Kits (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powersports Engine Rebuild Kits (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Brand
- Namura (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Cylinder Works (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Vertex Pistons (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Price Range
Filter Options
- PowerSports (8)
Savings Central
- Clearance (1)

Engine Rotating Assemblies & Rebuild Kits

Showing In Stock Items. Show All 10 Items.

Individual Parts

Part Groups

Results 1 - 8 of 8

Cylinder Works Standard Bore Cylinder Kits 422-60002K

Cylinder Works Standard Bore Cylinder Kits 422-60002K

Cylinder Works Standard Bore Cylinder Kits 422-60002K

Top End Engine Kits CYL WORKS STD BORE KIT POLARIS CYL WORKS STD BORE KIT POLARIS 800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002-K01

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

...Loading

Estimated Ship Date: May 21, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits 422-61002K2

Cylinder Works Big Bore Cylinder Kits 422-61002K2

Cylinder Works Big Bore Cylinder Kits 422-61002K2

BIG BORE KIT

Part Number: CLW-61002-K02

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

...Loading

Estimated Ship Date: May 22, 2026 if ordered today

Vertex Complete Engine Rebuild Kits WR101-057

Vertex Complete Engine Rebuild Kits WR101-057

Vertex Complete Engine Rebuild Kits WR101-057

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 10.20 to 1 Compression, Polaris, Kit

Part Number: VPX-WR101-057

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

...Loading

Estimated Ship Date: May 22, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits 422-60002KH2

Cylinder Works Standard Bore Cylinder Kits 422-60002KH2

Cylinder Works Standard Bore Cylinder Kits 422-60002KH2

Top End Engine Kits CYL WORKS STD BORE KIT HI COMP CYL WORKS STD BORE KIT HI COMP 800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002-K02HC

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Namura Technologies Top-End Repair Kits NA-50080-BK

Namura Technologies Top-End Repair Kits NA-50080-BK

Namura Technologies Top-End Repair Kits NA-50080-BK

Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080-BK

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Namura Technologies Top-End Repair Kits NA-50081K

Namura Technologies Top-End Repair Kits NA-50081K

Namura Technologies Top-End Repair Kits NA-50081K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50081K

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

...Loading

Estimated Ship Date: May 21, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50080K

Namura Technologies Top-End Repair Kits NA-50080K

Namura Technologies Top-End Repair Kits NA-50080K

Repair Kit, Top End, 79.950mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080K

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

...Loading

Estimated Ship Date: May 22, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50081-BK

Namura Technologies Top-End Repair Kits NA-50081-BK

Namura Technologies Top-End Repair Kits NA-50081-BK

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50081-BK

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

...Loading

Estimated Ship Date: May 21, 2026 if ordered today

1

Page 1 of 1

Modal Header

Contact us with questions.

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify

Stay Updated with Emails from Summit Racing

Never miss a sale on new parts, tools, and more!

= Required

First Name

Last Name

Email Address Email required

See Our Catalogs

News & Events

News & Events Home
OnAllCylinders (blog)
Calendar of Events
New Product Releases
Summit Racing News
News You Can Use
Featured Vehicles
Media Center
Sanctioning Bodies

Help

Help Center
Return Policy
Beat-A-Price Guarantee
Payment Options
Contact Us

Social

Facebook
X/Twitter
Instagram
Pinterest
YouTube
Podcast

About Summit

Corporate History
Retail Locations

My Account

Profile
Email Preferences
Order Status & Returns
Wish List
Address Book
My Reviews
My Questions
My Garage
Sign In

Career Opportunities

More

Summit Racing Credit Card
Gift Cards
Calculators & Tools
Promo Exclusions
Become an Affiliate
Summit Racing Rewards Program
Summit Racing Equipment Protection Plan

Terms of Use | Privacy and Security | Site Accessibility
Copyright 2026 by AUTOSALES, INCORPORATED
dba Summit Racing Equipment | Trademarks

Let's Build it Together^™

Modal Header