{"product_id":"106-3690","title":"106\" BIG BORE FORGED PISTONS FOR 2007-'16 HD BIG TWINS - 3.927\" STANDARD BORE 106-3690","description":"S\u0026amp;S CYCLE106-3690 \u003cbr\u003e\u003cbr\u003e      \u003cbr\u003e These big bore pistons work with the stock 4-3\/8\" stroke flywheels to convert any 2007-'16 HD\u003csup\u003e®\u003c\/sup\u003e big twin engine from 96\" or 103\" to 106\" displacement with 10:1 compression with stock heads. Stock cylinders may be bored to accomodate larger pistons, but we recommend S\u0026amp;S 3.927\" bore cylinders which feature high strength alloyed cast iron liners. Pistons are compatible with stock rods with tapered wristpin ends. S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e 3.927\" bore pistons are machined to such close tolerances that it is not necessary to measure the piston. Just bore cylinders to nominal diameter +\/- 0.0005\" for correct clearance. Additionally, the low friction coating on the piston skirt makes taking measurements very difficult. 3.927\" standard bore. \u003cbr\u003e \u003cbr\u003e\u003cbr\u003ePart Number : 106-3690 \u003cbr\u003e\u003cbr\u003e106-3690 \u003cbr\u003e\u003cbr\u003e      \u003cbr\u003e These big bore pistons work with the stock 4-3\/8\" stroke flywheels to convert any 2007-'16 HD\u003csup\u003e®\u003c\/sup\u003e big twin engine from 96\" or 103\" to 106\" displacement with 10:1 compression with stock heads. Stock cylinders may be bored to accomodate larger pistons, but we recommend S\u0026amp;S 3.927\" bore cylinders which feature high strength alloyed cast iron liners. Pistons are compatible with stock rods with tapered wristpin ends. S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e 3.927\" bore pistons are machined to such close tolerances that it is not necessary to measure the piston. Just bore cylinders to nominal diameter +\/- 0.0005\" for correct clearance. Additionally, the low friction coating on the piston skirt makes taking measurements very difficult. 3.927\" standard bore. \u003cbr\u003e  \u003cbr\u003e\u003cbr\u003e**** PLEASE NOTE ***** : 106-3690 \u003cbr\u003e\u003cbr\u003eThese are performance and custom aftermarket products sourced to match or exceed original specifications as an alternative to the OEM version. Any Harley-Davidson part numbers referenced are for identification purposes only.\u003cbr\u003e\u003cbr\u003e ","brand":"PCW","offers":[{"title":"Default Title","offer_id":43509036875824,"sku":"106-3690","price":973.9,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0031\/4012\/4739\/files\/106-3690.jpg?v=1787193545","url":"https:\/\/www.moto1.nz\/products\/106-3690","provider":"Moto1","version":"1.0","type":"link"}