S&S Big Bore Kits and Cylinder Heads for Harley Review at RevZilla.com

S&S Big Bore Kits and Cylinder Heads for Harley Review

S&S is one of the most trusted names within the community of riders who choose to re-work their bikes for more power. Their big-bore kits and heads let you add big power to your motorcycle without tons of research, machine shop work, or hassle. When simple bolt-ons leave you wanting more, S&S has what you need when you're ready.

[Skuurj]

Thinking about dropping the cash for the 106" kit for my newly purchased 96ci street glide. A little nervous about doing the work, but I think I can manage it. An install video would be amazing! This video did kind of push me towards biting the bullet on these, great job as always!

[FlaskBlack]

I'd love to see an install video for these.

[Coyote-wmop]

Think I’ll go with the unfinished jugs and heads. The black starts to fade and flake off.

[goodboyringo]

Fixing the Harley twin cam can make you rich.
Building up the twin cam engine will slip the pressed together junky crank then you'll have run out destroying the engine.
The only fix for the TC is starting with a new (my opinion ) S&S crank . Changing the cam chain plate & tensioners to hydraulic is good but not the biggest problem, the crank is!
The stock Harley compensator before 2014 can't handle big hp. Harley junk!

[earldetwiler]

WE went with S&S for all the right reasons.

[aamirshaikh]

Kindly post a video on SS big bore 750/865 for Royal Enfield 650

[floridalawncareexpertsllc]

I saw something that said you can't use anything but an ss carb after installation of this kit.. that the intake manifold won't line up. I have a mikuni.

[Itsme-mxtl]

T-Man performance has the best M8 cylinders heads, they install a longer cylinders sleeve so the piston doesn't rock at the bottom of the stroke

[JCcanU]

Built a 1990 883 for my wife 2002, turned it into a 1200 gained 20 hp, it ran 85 mph before after it ran 120 mph, had more torque low end . she run it 4 years keep up with the Evo 80 ci 1340s and 88 ci 1450s , yes some women can ride . she got hurt on the job had to stop riding . :(

[thakery]

Increasing the capacity is a good way to get more power, but the heads are set up for the cams. Choose some cams (- the bigger the better in my opinion) that work well with the capacity increase you are thinking of ( bigger IS better ! )and get the heads ported by someone like Hammer who have loads of experience and can do it on a CNC mill - S&S can do it for you as well. Best Heads Harley make are the 110" twin cam ones and even they need work as they are set up to work with emission-compliant cams. As for the twincam crank, S&S ones are good and Dark Horse are the best but expensive - just get the crank refurbished with new rollers and cages, trued, pro-plugged and welded. Fit better mains ( the famous 'Lefty bearing') in both cases and get the case mouth bored for bigger cylinder spigots. 113" + engines give over 125 BHP and similar torque - I have done this and it is great fun, but the more air your 'pump' moves the more fuel it uses as well !

[johnwlwconstruction]

Just bought a S&S Big Bore Kit 585 cams jugs pushrods Pistons do I need to change the heads

[jamespowers]

No you don't have to remove the motor for softail anyway.

[acearboriculture]

I have a S&S 124ci upgrade on my 2019 street bob with forged pistons, pushrods, performance high lift cams, high lift valve springs, tappets. 64mm throttle body, SE heavy fuel injectors, plugs, leads heavy flow breather and bassani big radius pipes. It has stock heads on it and was wondering if i should go for some S&S ported heads and if so what would you suggest ? It’s just come off dyno with 140Lbs at the rear ... but just wondering if the heads will make much more of a difference .. thanks in advance 🇬🇧

[ricbo]

I have a 2016 FatBoy, What is the the largest HP and Torque upgrades I can do and still be a reliable everyday rider .

[THEBIGCHULETA]

can we get step by step tutorials on how to do this?

[ihateemael]

how about shipping the rings preinstalled on the pistons and gapped to suit the bore? . . . so I don't prebreak them!

[giovannipinto]

Why do they build cylinders with smaller fins than 2004 up stock cyls. Can a 100+ HP engine dissipate enough heat?

[ltsgarage]

I went to Revzilla. They dont have a big bore kit for the Evolusion motor. They turn around and send you to S&S. Which you can buy directly from. What good is this video besides getting you to Revzilla's site. It's just an add for them.

[SaeedisMatic]

can't wait for the how to Lemmy ;)

[daviesjack]

Lets say i have the iron 883. I put this 1200 big bore kit on it. I have vance and hines short shots as well as screamin eagle heavy breather and the fuel pack. Would i need to change fueling after i put the 1200kit on it even though i have the fuel pack on it? AMAZING REVIEW BY THE WAY!