Page 144 of Engine Components & Gaskets by Zodiac

pistons piston rings 3 1/2 bore wiseco forged piston kits for evolution big-twins with aftermarket heads these wiseco piston kits are designed for use on evolution big-twins with screamin eagle cylinder heads can also be used with stock or other aftermarket heads if valve to piston clearance is checked kit includes front and rear pistons piston rings circlips and chrome wrist pins compression ratio is 10.5 to 1 when used with screamin eagle heads and stock stroke 238982 piston kit 005 238983 piston kit 010 238984 piston kit 020 07 piston dome specification all valve pocket specifications are measured from deck height dome volume +6,5cc intake pocket exhaust pocket depth diameter depth diameter 165 2.080 165 1.740 note custom made pistons up to 4 1/2 bore are available on special order please check with your local zodiac dealer to find out what information is needed to complete a custom piston order fits iron head sportsters 1972 thru 1985 except 1972 with xr style head 10 to 1 compression with stock stroke 3.812 number size displ bore 710050 std 1000 cc 3.188 710051 010 1003 cc 3.198 710053 030 1016 cc 3.218 fits shovelhead 1340 cc 80 ci compression listed is with stock stroke 4.250 9.5 1 compression number size displ bore 710068 std 1340 cc 3.497 big bore pistons for evolution big-twins 1984 to present must be used with 3 5/8 cylinder liners compression ratio give is with stock stroke 4.25 size 9.25 1 10 1 displ bore std 710089 710094 1438 cc 3.625 020 710096 1446 cc 3.635 030 710092 710097 1453 cc 3.645 040 710093 710098 1461 cc 3.655 235278 cylinder liner for 3 5/8 bore sold each arias forged pistons for over thirty five years arias forged pistons has been dedicated to the development and manufacture of high performance automotive and motorcycle pistons recently the resurgence of the popularity of harley davidson motorcycles has created a demand for high performance products to enhance the power of these american built bikes arias responded to the demand with a complete line of forged piston kits for harley davidson the special designed forging allows for maximum performance as well as reducing the total weight all arias pistons are forged in the usa from extruded billet 4032 high silicon low expansion aluminum alloy this material allows tighter piston to cylinder clearance which increases ring seal reduces blow-by and increases overall horsepower this assures years of extreme use and reliability various compression ratios and overbore sizes are available so that you do not have to compromise to achieve your performance goal arias piston kits are sold as a complete kit including high quality american made wrist pins and hastings piston rings 07-144

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