QS-9000 Certified A356-T6 aluminum castings. Centrifugally spun cast iron liners integrally cast to aluminum to provide excellent thermal conductivity.

Technical Specs
Bore size 4.250". Cylinders bored to within .010" or available honed complete when sold with pistons.

NOTE-These cylinders will not fit stock Twin Cam crankcase stud pattern!

Available Finishes
Black	Natural

Delkron Big Bore Cylinders

ITEM #	SIZE	FINISH	PRICE
D3110	4.250"	Natural	$870.72
D3111	4.250"	Black	$895.95



Big Bore Crankcases	Long Block Assemblies	Short Block Assemblies

©2013 Cometic Gasket Inc | All rights reserved. | EVOLUTION, EVO, DYNA WIDE GLIDE, SPORTSTER, SOFTAIL, BUELL, FXST, FLH, TWIN CAM 88 and Hogs are registered trademarks of Harley-Davidson Motorcycle Co. Delkron, Inc. is not affiliated with Harley-Davidson Motorcycle Co. in any manner. Harley-Davidson Motorcycle Co. does not sponsor or endorse any of Delkron's products or services.

All Delkron products are proudly made in the U.S.A.

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