🛠️ 96mm Big Bore Engine Kit – Honda CRF450R (2013–2016)
This all-in-one engine rebuild kit is designed for bolt-on installation with no machining required. With a 96mm aftermarket cylinder, forged piston, and upgraded crankshaft, it provides reliable power and long-term durability for your CRF450R.
✅ Fits all 2013–2016 Honda CRF450R models
✅ Compatible with pump or race fuel
✅ All parts are brand new with manufacturer warranty*
96mm Aftermarket Cylinder
Forged Piston – Wiseco, JE, or CP (based on availability)
High Temp Piston Rings
Wristpin + Circlips
Hotrods or Wiseco Crankshaft (Assembled with Rod)
Main Crank Bearings
Transmission Bearings
Counter Balancer Bearings
Water Pump Bearing
Water Pump Mechanical Seal
Valve Stem Seals
Complete Gasket Kit
Complete Engine Seal Kit
Cam Chain
Performance Clutch Kit
Heavy-Duty Head Stud Kit
No machining required – True bolt-on setup
All internal components are OEM-compatible
Built for performance, longevity, and heat resistance
Piston is safe to use with pump or race gas
Includes top-end and bottom-end rebuild components
📦 Shipping Time:
Ships within 5–7 business days. Tracking provided after shipment.
💬 Customer Support:
We’re here Monday–Friday, 7 AM to 4 PM PST.
Store chat available 24/7.
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.
Sold items are removed daily.
If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.
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I received the Cam, But there were no instructions.
Banshee - Dipstick & Oil Plug Billet - Modquad
My 400ex has never sounded better. New tensioner, guides, and chain fixed the noise. Metal bottom end gasket was cool too, didn't rip while working on it.
Thank you for your positive review! We're glad to hear that the TRX400EX Cam Chain Tensioner & Wiseco Heavy Duty Cam Chain Kit was able to fix the ticking noise on your 400ex. We agree, these small maintenance steps can make a big difference in the overall performance and sound of your vehicle. We appreciate your feedback and hope to continue providing quality products for your ATV. Happy riding!
Well my mechanic said it was some good parts in the box. I'll let you know how the rebuild goes. Great I hope
I haven’t received them yet
Trevor, thank you for your 5 star review. We appreciate that. Rest assured I just checked your tracking info and UPS says they will arrive today between 1:30 & 3:00 pm. Your going to love the Lectron Carburetors!