Northwest Sleeve Inc.
World Class Products and Service
No one puts the detail in sleeves like we do.
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This Month at
750 TERYX/BRUTE FORCE BIG BORE KIT IS HERE!
Cylinder design prohibits enlarging the bore size of these cylinders, so we've designed special sleeves that easily accept the 90mm pistons with out compromising the structure of the cylinder. No case modification is necessary and installation is easy for any experienced machinist.
We chose CP Piston simply because they build superb pistons. For this kit, we've set compression at 11.5:1 but we have higher compression available on request. The 11.5:1 piston is a reliable choice for enthusiasts who simply want more more power and performance in a simple and easy installation.
The kit includes sleeves, pistons and head gaskets. Installation is also available from our service department. Call us at 1-877-753-3830 for more information.
Northwest Sleeve News Archives
Our online catalog has been updated to reflect new products added to our product lines since January 2009. If you have visited this link in the past and are having trouble downloading, please clear your temporary internet files and try again.
Celebrate 25 Years With Us
We are starting off our birthday year with fabulous products and services. Our new 840cc big bore kit for the Kawasaki Brute Force and Kawasaki Teryx is finally available. Featuring our custom design wet sleeves and CP custom pistons, this bolt on kit is a popular and inexpensive way to boost performance.
We now carry Wossner, CP, Pro-X, Wiseco and JE Pistons--many popular makes and sizes in stock. Top end gaskets from Cometic and Wiseco. Hot Rods, Hot Cams, Web Cam - most everything for performance or rebuilds.
We hope you'll return often to see what's new as we look forward to the next 25 years of serving the powersports industry .
BIG BORE BILLET KIT CRF 150
Check with us for further details and price.
DECEMBER 2007: 700 DRAGON BIG BORE
We have sleeves in stock and ready to ship to your dealer or favorite performance shop. In more of a hurry? You'll find complete cylinder kits and additional performance options at Carl's Cycle. Give them a call at 208-853-5550 for more information and testimonials on their kit.
MARCH 2007: BILLET BIG BORES KITS ARE HERE!
500/540 TRX 450R 2005
540CC Kit: 6MM stroker cylinder, 99mm JE piston 13.5:1 compression, head and base gaskets. Kit is finished and ready to install. Part # 0205S-K $995.00.
500 TRX 450R 2006
275 CRF 250R
262CC Kit: coming soon--will not require any case modification.
JUNE 2007: GARAGE SALE
First, we have an absolutely brand new Honda 04 - 06 CRF 450R cylinder. Still in the original packaging; hasn't been touched. Best online retailer price we've found so far: $ 248.00. Our price: $ 165.00.
Next up, we have and 04 and 05-06 CR250 cylinder. Each cylinder has been bored to accept a sleeve. These cylinders were used inhouse and have not been run. We will install the sleeve and set the bores up for the piston of your choice. Either cylinder can be turned into a big bore with the 98mm Wiseco. These cylinders are both listed over $400 online; Our price: $299 (does not include piston kits, but we can fix you up with one and anything else you need).
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Northwest Sleeve - www.NWsleeve.com
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12410 SE 282nd Avenue, Suite E Boring, OR 97009
503.666.8430 ~ Toll Free Order Line: 877.753.3830