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SPUTHE QUICK-BUILD BIG-BORE KIT

No additional machining required – just assemble it.

 Use our Sputhe crankcase and Sputhe big-bore cylinders, plus your stock 4 1/4” stroke crank, along with all your other stock components, to produce a 95 cubic inch engine.  Also available for 4 5/8” stroke crank, to produce a 104 cubic inch engine.  For easy assembly, the pinion-bearing race is line lapped.

 Kit Includes:
Sputhe heavy duty crankcase
Sputhe 3.780” aluminum cylinders
JE forged pistons, rings & wrist pins
Timken main bearings
Cam bearing
Points cover
Cylinder studs


Crankcase pictured is completely CNC machined.

95 cu in Engine

104 cu in Engine

Part #3-95A9 $

7009 crankcase/dish top pistons

Part #3-104A9 $

7009 crankcase/dish top pistons

Part #3-95B9 $

7009 crankcase/flat top pistons

Part #3-104B9 $

7009 crankcase/flat top pistons

E-Mail: sputhe@hotmail.com
ORDERS BY PHONE ONLY

Tel: (530) 268-0887
11185 Lime Kiln Road
Grass Valley, CA 95949-9715

SputheEngineering name, design and related marks are trademarks of  SputheEngineering, Inc.
SputheEngineering, Inc. ©1997-2013.  All Rights Reserved.