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WISECO HIGH-COMPRESSION PISTON KITS FOR EVOLUTION SPORTSTERS AND BIG TWIN

WISECO HIGH-COMPRESSION PISTON KITS FOR EVOLUTION SPORTSTERS AND BIG TWIN

WISECO 3 3/4" BIG BORE PISTON KITS FOR EVOLUTION BIG TWIN

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WISECO FORGED PISTON KITS FOR 2004-2022 SPORTSTER XL1200

WISECO FORGED PISTON KITS FOR 2004-2022 SPORTSTER XL1200

These piston kits will convert your 1340 Evolution Big Twin motor to a 93.4 cubic inches (1530 CC) Big Bore with stock stroke. Must be used in combination with a set of 3.740" bore cylinders. No cylinder head modification or re-balancing of the crankshaft required, just have your crankcase bored to the spigot size of these big bore cylinders. Compression ratio is 9.5 to 1 when using the stock Harley cylinder heads. Kit includes a pair of Wiseco forged pistons, Hastings piston rings, wrist pins and piston pin clips. Top end gasket kit for your year motorcycle must be ordered separately.

Note:
These kits are designed for use with 1984 thru 1989 and 1996 thru 1999 stock crankcases or any S&S, Delkron or S.T.D. crankcase. Due to a weaker construction of the stock 1990 thru 1995 crankcases the use of these is not recommended they should be replaced with S&S, Delkron or S.T.D. crankcases.


Specifications

Piston kits
Article number Description Retail price Add to cart
238805
3.740" Big Bore piston kit for stock stroke 4 848,06 kr
Top end gasket kits
Article number Description Retail price Add to cart
700030
Fits 3.740" Big Bore 1992 thru 1999 Evolution Big Twin 2 193,60 kr
Replacement piston ring set (for one piston)
Article number Description Retail price Add to cart
238813
3.740" Std. size 536,64 kr
Piston dome specification
All valve pocket specification are measured from deck height
Dome Volume Intake Pocket Exhaust Pocket
Depth Diameter Depth Diameter
-2 CC -.189" 2.000" -.189" 2.000"

Recommended Retail Prices include 25.00% sales tax.

Prices exclude shipping, import duties and installation.

Prices are based on EUR to SEK interbank rates obtained daily. The interbank rate is the rate that banks trade currency to each other. These prices must be used as a guide.