S&S Cycle
S&S CYCLE 910-0845A 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8 for Harley-Davidson Engines
S&S CYCLE 910-0845A 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8 for Harley-Davidson Engines
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### S&S Cycle 132" Big Bore Kit – Highlighted Fin / Wrinkle Black
The Nuclear Option for Your Milwaukee-Eight
**NOT LEGAL IN CALIFORNIA. PERIOD.**
**WE WILL NOT SHIP TO CALIFORNIA** – don’t waste your tears or your memes or your cousin’s P.O. box in Nevada. We’re not playing that game.
You didn’t come here for a cute little 124".
You came here to delete souls.
4.320" bore × 4.500" stroke = 132 cubic inches of straight-up violence.
This is the biggest, baddest, bolt-in big bore on the planet. No case machining. No bullshit. Just drop-in Armageddon.
**What you’re actually buying:**
- Murder-black cylinders with highlighted fins that look like Satan’s own engine block
- 11.0:1 forged pistons ready to turn 93 octane into lightning
- MLS head gaskets that laugh at 200+ hp
- Keeps your factory engine height, bolt pattern, and serial numbers (so you can still flex “numbers matching” while smoking CVO boys)
- Works with your stock crankcases – yes, really
**Dyno receipts (with ported heads, a real cam, and a tune that doesn’t suck):**
- 150–160+ hp
- 150–165+ ft-lbs that hits like a baseball bat to the chest at 2,200 rpm
**Fits every non-VVT Milwaukee-Eight 2017–2023:**
- Every Softail that ever mattered (Low Rider S/ST, Fat Bob, Breakout, Street Bob, Fat Boy, Heritage…)
- Every bagger, Road Glide, Street Glide, Ultra, Road King, Freewheeler, Trike, CVO, cop bike – all of them
- 107", 114", 117" – doesn’t matter. They all become 132" monsters now.
**Does NOT fit 2024+ VVT bikes.** If your cam has that stupid solenoid sticking out the nose, walk away.
Your bike is lying to you with that little “114” or “117” sticker.
This kit is the truth serum.
**NOT CARB APPROVED • CAN NOT SHIP TO CALIFORNIA • WILL 100% VOID YOUR WARRANTY AND YOUR SELF-CONTROL**
Add to cart before your bagger realizes it’s been living a weak, pathetic lie.
Trademark Disclaimer:
Harley-Davidson® is a registered trademark of Harley-Davidson Motor Company.
High Desert Performance is not affiliated with or endorsed by Harley-Davidson Motor Company.
All references are used solely for fitment and compatibility purposes.
SKU: 0931-1206
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I just finished the break-in miles on my 2020 Street Glide with the S&S 132" Big Bore Kit I bought from High Desert Performance and holy hell, this thing is an absolute monster now.
First off, shoutout to High Desert Performance:
Ordered on a Sunday night, kit was on my doorstep Wednesday morning. That’s insane west-coast-to-east-coast shipping.
Everything was packed perfectly, no damaged boxes, all gaskets/seals in sealed bags, torque sheets and instructions included.
I had a quick question about cam chest clearance with my stock pushrods and they answered the phone on the second ring, walked me through it, and even shot me a follow-up email with pics. Old-school customer service that actually cares.