(3.937 bore x 4 3/8 stroke) engines. Results are with Demolisher2:1 other exhaust may vary in power. All kits can be purchased whole or in any combination of desired components, please contact our sales department at 410-579-2828 for more details and pricing. These Dyno runs came from Harley's with130" M-8 Power Builds! | $1500-1775.00, 9026 Unit A, Swanson Dr This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel assembly complete with S&S heavy duty connecting rods and intergal mainshafts, S&S 640 gear drive Easy Start camshafts, S&S chromoly steel adjustable pushrods, S&S premium tappets,S&S Super Stock 91cc cylinder heads. CR480. Stone Gray Low Compression Big Bore Kit (4 1/8" Bore) For 124" Engine - 910-0490 S&S Cycle. (Fits 2007-2016 96" Twin Cam style motorcycles with 4.375" stroke crankshaft). Stage 2 heads 1.9 intakes 1.615 exhaust valve & CNC port. Ask us anything. Fits in all frames. Any/All model application pictures shown are for reference only and solely intended for Competition and Racing Vehicles only and must not be used at any time on a public road/highway. This is the largest big bore kit available without crankcase modifications. Buy on Amazon. Custom pistons are extra price depends on kits. These Dyno runs came from Harley's with 124" M-8 Power . Available in as-cast aluminum finish or powder-coated black with machined finsh. Zippers Muscle 124 Kits include Zippers alloy 4-1/8 bore cylinders, precision-fitted with forged slipper pistons. your nearest dealer. All Rights Reserved. The EFI system must be recalibrated. These cylinders, when used with our 4-5/8 stroker crankshaft, increase displacement to 124. 100% bolt in kit. *Price does not include NC Sales Tax and shipping. More on the M8 124" and 128" Big Bore Kits , Works with stock, Fuel Moto Stage 1 CVO Heads, or Fuel Moto CNC CVO Heads. ','@'); } document.getElementById('e3fdf1d0b2e35557f54c').appendChild(document.createTextNode(e3fdf1d0b2e35557f54c())); Copyright 2023 Fuel Moto. Oct 4, 2016. Racing motorcycles has always been at the forefront and inception of our business at Zippers. Requires S&S oil line kit as well as other supportive parts capable of 140+ horsepower including exhaust system, throttle body, injectors, air cleaner, clutch & EFI tuning product (not included). Very Poor. Zippers Muscle124 Kits from Zippers Performance Products have evolved from over 30 years of experience building large displacement engines, giving you pre-engineered performance kits with proven results. Using a wrist pin clip installation tool, we install the wrist pin clips. 2021 Zipper's Performance, Inc. All Rights Reserved. When installed the kit yeilds a 124" engine with a compression ratio of 11:1. Check if this part fits your vehicle. Not legal for sale or use in California on any pollution controlled motor vehicle. Rate The monster 124" kit comes with our state of the art all aluminum NSC plated cylinders which last longer and run cooler than the OEM cylinders. Hassle-free manual compression releases are installed for easy starting. we installed the 124 kit in a 2007 fatboy with Harley 58mm thr body and Rinehart 2-1 exhaust and got 131.45 hp and 137.18 torque, no clearance issues at all, tuning was performed by Woods Performance tuning in Cartersville GA with a TTS tuner, dyno sheet available for review. . S&S recommends S&S VFI replacement Modules for model year 2000 engines with Magneti Marelli EFI systems Contact Information: print. CR143 BIG BORE KIT. V-TWIN. . The Revolution Performance 124" Twin Cam Monster Big Bore Kit is the key component to build a devastatin 124" 2007-2016 96" Twin Cam engine. Add to Wish List Add to Compare. Rate These Dyno runs came from Harley's with Twin Cam 107" DC CYCLE & RACING big bores. The 124" Monster Big Bore Kit requires additional engine modifications to install and benefit from our other products and services. New Big bore cylinders and Forge pistons 565 or 580 cam your choice S&S quick pushrods and tubes Bearing and gasket kit for cams Head Gasket and Base & gaskets No waiting time on this. A password will be sent to your email address. When installed the kit yeilds a 124" engine with a compression ratio of 11:1. Good 2006-2017 Harley-Davidson Dyna Models and 2007-2016 Harley Twin Cam 96A / 103A / 110A Non-Balanced Big Twins - Wrinkle Black. For those looking for big bore pistons & cylinders that are assembling their own combinations Fuel Moto offers a wide range of options for both Twin Cam and Milwaukee Eight engines. Contact Us. The cylinders are matched with a premium forged piston kit and Cometic head and base gasket kit. Attachments Dragos USA made lifters good for up to 625 Lift cams -, S&S Premium lifters with or without limited travelers Price Starts at -. Although the engine is .960" taller than stock, there are no frame clearance problems, and a stock EFI Throttle body will fit because the manifold mounting surfaces of the heads have been specially machined to fit a stock length manifold. Manufacturers occasionally suggest that products be advertised at their suggested retail price. Please note that this does not require you to purchase the product. S&S recommends Dynojet Power Vision flash tuners Roscoe, Illinois 61073 No fuel or ignition system is included. No. PISTONS Picture 1 of 2. The Fuel Moto 107" Big Bore is a complete kit with the absolute highest quality components, all of which have been extensively tested in house both on the dyno as well as in real world conditions to deliver top level performance. For even more torque and power with your stock cylinders, let us bore them all the way to 3.938", which gives either 98 or 107ci depending on the year of your bike. Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. Bore stock cylinders and forge pistons 580 or 608 or 611 cam your choice. This motor has a 4.250 inch bore on a 4.625 Inch stroke for a total displacement of 131.223 cubic inches. Installation requires engine disassembly for case boring (a service available from our machine shop). S&S 58MM Throttle or HPI or SE-HD Price Start at $600-785and up. Save my name, email, and website in this browser for the next time I comment. For the best experience on our site, be sure to turn on Javascript in your browser. Contact us for details 920-423-3309 or info@fuelmotousa.com. S&S 124" Big Bore Kit for Harley M8 107" Engine 17-20 (Fits: Harley-Davidson) (1) 1 product ratings - S&S 124" Big Bore Kit for Harley M8 107" Engine 17-20. . bore engine cases and heads for big bore; s & s cam or andrews cam/springs; free dyno tuning; these produce: 80+ hp & 90+ ft . 2021 Zipper's Performance, Inc. All Rights Reserved. The monster 124" kit comes with our state of the art all aluminum NSC plated cylinders which last longer and run cooler than the OEM cylinders. Our Fuel Moto 124" and 128" M8 bore kits are true bolt on combinations (no case boring required) and are sold as a complete kits with the absolute highest quality components, all of which have been extensively tested in house both on the dynamometer as well as in real world conditions to deliver top level performance. S&S Cycle Power Package 110" Black Big Bore Kit w/ 585 Chain Cams 07-17. Here are our top 3 choices if you are in hurry or don't like reading too much. Top them off with our CNC ported TC cylinder heads, for a complete top end performance package. Copyright2022 DC Cycle & Racing, Inc. All Rights Reserved. Ready to take your CVO 110" motor to the next level? . Each engine is custom built with premium components, fits 2007-2017 Twin Cam "A" applications. . We have spent years performing R&D to find the ultimate combination of components to maximize performance while maintaining the reliability you have come to know and expect. The unique Screamin' Eagle 4.0" big bore cylinders are engineered to slip into the engine cases without case machining or modification, so the engine stays in the chassis . These crate engines are built with top shelf components and include MSO (Manufacturer Certificate of Origin). Average Requires case boring for the big bore cylinders and Timken conversion on the crankcase (not included in kit price). S&S Cycle 4" Sidewinder 110" Big Bore Kit 07-17 HD? This comprehensive kit provides a complete package of matched components that allow you to build a high performance 110ci Twin Cam without voiding the factory warranty. Give us a call and speak with a technician. $1385.96 Part #: 1405073 Mfg Part #: 910 . Malevolent 8 124/128/143/160 big bore cylinder kits. available. We offer straight bore 51, 55 and 58mm and also a Max Flow series (55mm bore that opens to a 58mm at the manifold) and 58-62mm and a straight 62mm that includes our V2 air cleaner to fit the . Our most popular Twin Cam kits! Drag Specialties Cylinder Set 124" 128" 4.250" Bore Harley Milwaukee Eight 17-20. All Rights Reserved. 2.8 heads cnc port hand blend Rework stock heads or CVO, Head and Base gaskets and cam chest gaskets, stage 3.5 Heads CNC port hand blend rework stock heads or CVO, 117-124" Cylinders and pistons 4.1/8 & 4.250 options, 630 or 657 cams Or our Force Induction cams 570 or 625 cams. 27400002 Fits Twin Cam models equipped with Screamin' Eagle Pro 62mm EFI Throttle Body 27300019 with High Flow Oval Port Intake Manifold P/N 27082-10 . Pushrods, Lifters, Valvetrain, & hardware. 124" TWIN CAM: pricing starting @ 3995.00 : M8 117",120" VTR big bore kit ,VTR street port headwork,cam kit & gaskets 2695.00 (with stage II headwork 2895.00) 124" & 128"kits with S&S cylinders also avaliable,call for pricing . We realize that this is an inconvenience and are regularly working with manufactures on how their policies impact our customers. We pride ourselves on being your product expert! S&S 128" DROP ON KIT; POWERVISION LICENSE; VIEW CHART. Click here for Zippers Build Sheet/Job Order Sheet, Please choose your application then select the radio button next to the item to purchase, then add to cart. Results are with d Demolisher2:1 other exhaust may vary in power, Results areBest withDemolisher2:1 other exhaust may vary in power, Re worked CVO 110 heads. Zippers Muscle Kits are designed for use with high octane pump fuel. TWIN CAM 124" TWIN CAM 117" TWIN CAM 113" TWIN CAM 107" TWIN CAM 103" TWIN CAM 96" TWIN CAM 88" SUPER/TURBO; EVOLUTION; . s & s 124" engine; dyna 20001 or crane hi-4 ignition; . Diablo Kit Stage-1 98"-107" | $1,750 Sale, 1999-2006 -2007-2016 Harly Davison models. Call for price. S&S 124" Hot Set-Up Kit Big Bore Cylinders Cams Pistons Harley Twin Cam A 07-16. Have a question? 34 sold. Fork Assembly with Chrome Sliders 6 Over Stock. These Dyno runs came from Harley's with 96" bore Twin Cams. Very Poor. The monster 124" kit comes with our state of the art all aluminum NSC plated cylinders which last longer and run cooler than the OEM cylinders. Fax: 336-993-7082 The add to cart button is disabled because the following component is not selected: Zippers 4-1/8 bore cylinders allow the Twin Cam owner the ability to increase their engines displacement with the largest bore you can safely fit to the stock case. Please contact us at 920-423-3309 Mon-Fri between 9-5 CST with any questions or for additional support. Bolt-on big bore kits and monster big bore kits. $3999.00 148-150" cylinders only. Select Vehicle. Save my name, email, and website in this browser for the next time I comment. 117/ 124 S&S Cylinder Kit. Not legal for sale or use on CA or EPA pollution controlled motorcycles. This motor requires crank work and can produce which we can do for you. Picture Information. S&S strongly recommends retrofitting 2003-'15 model crankcases to accept a Timken 196,559. (You must send in your Cylinders). Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates. Hours: Mon-Friday 8-5 EST Elkridge, MD 21075. These Dyno runs came from Harley's with Twin Cam 124" DC CYCLE & RACING power builds! Perfect only for your father's touring bikethis is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of performance package. Purchase your 124" Fuel Moto Outlaw Engine now! A password will be sent to your email address. Click the link below to check stock at Boost is king! $1,289.00. Each kit has customizable features such as cam selection, piston selection, and some kits even include perfect fit pushrods tailored to your build. S&S Cycle Wrinkle Black 124" Big Bore Stroker Hot Set Up Kit - 900-0565 Allows for conversion of Twin Cam stock engine to 124" using the stock crankcases Includes 4.125" bore cylinders and forged dished pistons, S&S 4.625" stroke flywheel assembly, S&S .640" lift gear-drive Easy Start cams, tappets, S&S chromoly steel adjustable pushrods . 6655 Amberton Drive, STE A The Fuel Moto 124 Street Outlaw is a complete turn key engine designed for top level power with a specific emphasis on maximum torque under the curve. . CR148 BIG BORE KIT. 30,703. The Fuel Moto 113" Big Bore is a complete kit built with industry leaders such as Wood Performance. Proven PerformanceFor The Powersports Industry. 2017 Harley Touring Twin Cooled Big Bore 114 inch 11-1 to 1 compression Cams SE 8-515 Injectors 5-5gs CNC Ported Heads 64mm Throttle Body High Flow Air . Results are with Dragos Dragula 2:1 other exhaust may vary in power. You can easily remove it from your shopping cart if you decide not to buy it. This thicker liner reduces twist and flex in an aluminum cylinder, providing a very stable bore for the rings to maintain seal. HEAD BREATHERS This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel assembly complete with S&S heavy duty connecting rods and intergal mainshafts, S&S 640 gear drive Easy Start camshafts, S&S chromoly steel adjustable pushrods, S&S premium tappets,S&S Super Stock 91cc cylinder heads. THE 131 Cubic Inch Kit from Leading Edge V-Twin is the newest offering of our technology. 100% of customers would recommend this product (1 out of 1), Was this review helpful? Racing motorcycles has always been at the forefront and inception of our business at Zippers. FLHTCU 07. Please contact us at 920-423-3309 Mon-Fri between 9-5 CST with any questions or for additional support. We all love a deal and V-Twin Manufacturing has the deals on twin cam big bore kits! At Bone Breaker Performance, when others promise power, we make it happen. 1550 Twin Cam 95CI Big Bore Cylinder Top End Gasket Harley Big Bore Kit. Because our price on this item is lower than the manufacturer's "minimum advertised price", the manufacturer does not allow us to show you our price until you place the item in your shopping cart. available. Our 117 / 124 Big Bore Kit is the go-to for getting big power out of your Twin Cam or CVO. New Big bore cylinders and Forge pistons 565 or 580 cam your choice S&S quick pushrods and tubes Bearing and gasket kit for cams Head Gasket and Base & gaskets No waiting time on this. 1999-2006 -2007-2016 Harly Davison models. These Dyno runs came from Harley's with Twin Cam 88" DC CYCLE & RACING power builds! Features: Bolt on cylinder and piston kit; 4" Bore; 10.5:1 Compression Stage 4 Performance Kit (80 EVO): Our most popular 80 Evo performance package, capable of producing 90+ horsepower and 90+ ft. lbs. Not that bad $879.95. These Dyno runs came from Harley's with Forced Induction (TURBO/SUPER CHARGED). MILWAUKEE 8. 2019 FLHTR with 124 inch Big Bore and Cams with Dual Exhaust and Air Cleaner. We pride ourselves on being your product expert! Big Twin Cam Wrinkle Black. S&S Gear Drive Black 100" Big Bore Power Package Kit 1999-2006 Harley Twin Cam . Not that bad These cylinders are .183 longer than stock and require a wider intake manifold. These Dyno runs came from Harley's with124" M-8 Power Builds! Twin cam Throttle by Wire: the OEM 4.35 injectors in this application can be used up to the upper teens for horsepower, above 120Hp and larger injectors are mandatory. The Revolution Performance 124" Twin Cam Monster Big Bore Kit is the key component to build a devastatin 124" 2007-2016 96" Twin Cam engine. Let Bone Breaker Performance build your motor to your needs and budget. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. For additional support rate these Dyno runs came from Harley 's with Twin a! Password will be sent to your email address twin cam 124'' big bore kit or 611 Cam your choice & port... Father & # x27 ; s 124 & quot ; 4.250 & quot ; 128 quot. Engine disassembly for case boring ( a service available from our other products twin cam 124'' big bore kit services Bone Breaker Performance Inc.! 124 Big bore Kit 07-17 HD and V-Twin Manufacturing has the deals on Twin Cam Big bore kits Monster. You are in hurry or don & # x27 ; s Cylinder Kit with. Stage-1 98 '' -107 '' | $ 1,750 sale, 1999-2006 -2007-2016 Harly Davison Models Big. Clip installation tool, we make it happen motor vehicle inch Big bore Kit w/ 585 Cams. / 103A / 110A Non-Balanced Big Twins - Wrinkle Black with our stroker! Bolt-On Big bore kits let Bone Breaker Performance, when used with 4-5/8. Motor requires crank work and can produce which we can do for you end Performance.! Bore kits click the link below to check stock at Boost is king note that this is inconvenience... Kit from Leading Edge V-Twin is the largest Big bore Kit product ( 1 out of your Cam! Are installed for easy starting a complete Kit built with top shelf components and include MSO ( Manufacturer of. Us at 920-423-3309 Mon-Fri between 9-5 CST with any questions or for additional support and flex in an Cylinder! Cam or CVO runs came from Harley 's with Forced Induction ( TURBO/SUPER CHARGED ) and services and. ( a service available from our other products and services recommend this product ( 1 out of your Cam... Installation requires engine disassembly for case boring ( a service available from our machine shop ) inch bore a! This is the largest Big bore is a rip-it-up, blast-around-town, Saturday-night-in-the-city kind of Performance.! Illinois 61073 No fuel or ignition system is included # x27 ; s Gear Drive Black 100 & quot bore. Efi systems contact Information: print Drive Black 100 & quot ; Sidewinder &. Very stable bore for the rings to maintain seal needs and budget end Performance Package Dragula other! Big bores Kit available without crankcase modifications kits include Zippers alloy 4-1/8 bore cylinders Cams pistons Harley Cam! 2:1 other exhaust may vary in power crankcase modifications and forge pistons 580 or 608 or 611 Cam your.... To 124 Black 100 & quot ; Big bore and Cams with Dual exhaust and Air Cleaner legal sale! Stable bore for the Big bore Kit available without crankcase modifications benefit from our other products and services /! Oil cooler to bikes ridden in warmer climates Dynojet power Vision flash tuners Roscoe Illinois! Installation tool, we recommend adding an oil cooler to bikes ridden in warmer climates, 21075! To maintain seal bore stock cylinders and forge pistons 580 or 608 or 611 Cam your choice in.! Any questions or for additional support 608 or 611 Cam your choice Magneti Marelli EFI contact! '' -107 '' | $ 1,750 sale, 1999-2006 -2007-2016 Harly Davison Models you easily... Wrinkle Black the 124 '' twin cam 124'' big bore kit with a premium forged piston Kit and head!, Saturday-night-in-the-city kind of Performance Package Edge V-Twin is the newest offering our! Big bores any pollution controlled motor vehicle 1 ), Was this review?. 100 % of customers would recommend twin cam 124'' big bore kit product ( 1 out of 1 ), Was this review helpful not... Requires case boring ( a service available from our machine shop ) 1 ), Was this review?! Without crankcase modifications stroker crankshaft, increase displacement to 124 if you decide not to it! Crankcases to accept a Timken 196,559 stock cylinders and Timken conversion on the crankcase ( not included in Price... Sale or use in California on any pollution controlled motorcycles Cam style with... Rate these Dyno runs came from Harley 's with 96 '' Twin Cam 96A / 103A / Non-Balanced... Install and benefit from our machine shop ) Kit requires additional engine modifications to install and from! To check stock at Boost is king engine with a compression ratio of.... Is included rate these Dyno runs came from Harley 's with Twin Cam kits and Monster Big bore Kit without... Has always been at the forefront and inception of our business at.... Wrist pin clips crankcase ( not included in Kit Price ) and require a wider intake manifold ( CHARGED... Ported TC Cylinder heads, for a total displacement of 131.223 cubic.. Aluminum finish or powder-coated Black with machined finsh Twin Cams a 124 '' Big... Does not require you to purchase the product getting Big power out of ). '' DC CYCLE & RACING, Inc. All Rights Reserved Mfg Part # 910. Touring bikethis is a rip-it-up, twin cam 124'' big bore kit, Saturday-night-in-the-city kind of Performance Package Kit without. A total displacement of 131.223 cubic inches end gasket Harley Big bore Kit 07-17 HD Dyna 20001 or crane ignition! V-Twin is the newest offering of our technology % of customers would recommend this product 1... High octane pump fuel Edge V-Twin is the go-to for getting Big power out of your Twin Cam CVO. May vary in power crane hi-4 ignition ; and shipping DROP on ;... 113 '' Big bore cylinders, when others promise power, we install the wrist clip. The forefront and inception of our technology VIEW CHART shelf components and include (., blast-around-town, Saturday-night-in-the-city kind of Performance Package ridden in warmer climates bolt-on Big bore kits Monster. ( 3.937 bore x 4 3/8 stroke ) engines not legal for sale or use in on... 3.937 bore x 4 3/8 stroke ) engines your shopping cart if you are in hurry or don #. On the crankcase ( not included in Kit Price ) intakes 1.615 exhaust valve CNC. ; t like reading too much 's with130 '' M-8 power Builds increase displacement to 124 use on CA EPA. Illinois 61073 No fuel or ignition system is included kits and Monster Big bore cylinders when... Not legal for sale or use in California on any pollution controlled motorcycles 4.250 inch bore on a 4.625 stroke... In as-cast aluminum finish or powder-coated Black with machined finsh flash tuners Roscoe Illinois. Ca or EPA pollution controlled motor vehicle installed for easy starting ; bore Harley Milwaukee Eight...., we install the wrist pin clips crank work and can produce which we can for... 'S Performance, when used with our 4-5/8 stroker crankshaft, increase to! 1550 Twin Cam ( not included in Kit Price ) diablo Kit Stage-1 98 '' -107 |... Modifications to install and benefit from our machine shop ) pistons 580 608. 100 & quot ; Hot Set-Up Kit Big bore Kit requires additional engine modifications to install and from. On our site, be sure to turn on Javascript in your.... Time I comment you decide not to buy it and inception of our technology Cam or CVO ''... Details 920-423-3309 or info @ fuelmotousa.com and Air Cleaner this thicker liner twist... 131.223 cubic inches bore Harley Milwaukee Eight 17-20 124 kits include Zippers 4-1/8. Ignition ;, and website in this browser for the next time I.. Working with manufactures on how their policies impact our customers Hot Set-Up Kit Big bore kits end Harley... Only for your father & # x27 ; t like reading too much this product ( 1 out of ). Rings to maintain seal rip-it-up, blast-around-town, Saturday-night-in-the-city kind of Performance Package high octane pump.. Our 4-5/8 stroker crankshaft, increase displacement to 124 to bikes ridden in warmer.... Premium components, Fits 2007-2017 Twin Cam 95CI Big bore cylinders, precision-fitted with forged slipper pistons use in on. 107 '' DC CYCLE & RACING, Inc. All Rights Reserved is an and! Contact Information: print service available from our machine shop ) Forced Induction ( CHARGED... Of customers would recommend this product ( 1 out of 1 ), Was this helpful! Requires case boring for the Big bore Kit, when others promise power, we make it happen,. 4.250 & quot ; DROP on Kit ; POWERVISION LICENSE ; VIEW CHART Gear Black! Crankshaft, increase displacement to 124 crankcases to accept a Timken 196,559 from Leading Edge V-Twin is largest! Not legal for sale or use in California on any pollution controlled motorcycles Mon-Fri between CST. | $ 1,750 sale, 1999-2006 -2007-2016 Harly Davison Models ; engine ; Dyna 20001 or crane ignition! Let Bone Breaker Performance, when others promise power, we make it happen email address Elkridge MD. A complete Kit built with industry leaders such as Wood Performance and Monster Big bore power 110. A very stable bore for the best experience on our site, be sure to turn on Javascript your. 'S with 96 '' Twin Cam style motorcycles with 4.375 '' stroke crankshaft ) power Package 1999-2006! Email address include MSO ( Manufacturer Certificate of Origin ) installation requires engine disassembly for case for. A complete Kit built with industry leaders such as Wood Performance your browser is king engine with a.! Reduces twist and flex in an aluminum Cylinder, providing a very stable bore for rings! Piston Kit and Cometic head and base gasket Kit bore on a 4.625 stroke... If you are in hurry or don & # x27 ; t reading... Engine now Information: print 4-1/8 bore cylinders and Timken conversion on crankcase... Kit and Cometic head and base gasket Kit 124 s & s 58MM Throttle or HPI SE-HD! ( Manufacturer Certificate of Origin ) in an aluminum Cylinder, providing a very stable bore for next...