20+ DRZ 400S 400SM Stroker 94mm Big Bore Complete 470cc Motor Engine Rebuild Kit
Complete Suzuki DRZ400 engine rebuild kit with 94mm big bore cylinder and stroker crankshaft for 470cc performance upgrade on 2020+ models.
BPRATV 470cc Stroker 94mm Big Bore Complete Engine Rebuild Kit Suzuki DRZ400S DRZ400SM 2020+
๐ Product Description
Transform your machine with the ultimate BPRATV 470cc Stroker Big Bore Engine Rebuild Kit designed specifically for 2020+ Suzuki DRZ400S and DRZ400SM models. This complete high-performance motor rebuild package increases displacement with a 94mm big bore cylinder and +4mm stroker crankshaft, delivering massive torque gains, stronger throttle response, and significantly improved power across the entire RPM range.
Built for riders who demand durability and performance, this kit includes premium forged piston options from Wiseco, Wossner, CP, or JE, along with a fully assembled Hot Rods stroker crankshaft and complete bearing, gasket, and seal solutions. Whether you're rebuilding or upgrading, this kit provides everything needed for a true top-to-bottom engine overhaul.
๐ฅ Key Features & Benefits
- 94mm big bore cylinder increases displacement to approximately 470cc
- +4mm stroker crankshaft delivers increased torque and low-end power
- Forged piston options (Wiseco, Wossner, CP, or JE) for strength and reliability
- Complete engine rebuild solution including top and bottom end components
- MAXLOCK titanium head stud kit for superior clamping strength
- Heavy duty bearings throughout for long-lasting performance
- MLS head gasket designed for big bore applications
- Includes clutch kit and timing chain for complete drivetrain refresh
- All components are brand new and precision matched
๐ฆ Product Contents
- BPRATV 94mm big bore cylinder
- Forged big bore piston (Wiseco, Wossner, CP, or JE)*
- High temperature piston rings
- Chrome wrist pin
- Piston circlips
- Hot Rods +4mm stroker crankshaft with rod (assembled)
- Heavy duty crankshaft bearings
- Transmission bearings
- Water pump bearings
- MAXLOCK titanium head stud kit
- Complete gasket kit
- MLS big bore head gasket
- Complete crankcase oil seal kit
- Valve stem seals
- Water pump mechanical seal
- Complete clutch kit
- Cam/timing chain
โ Compatibility
- Suzuki DRZ400S (2020, 2021, 2022, 2023, 2024, 2025, 2026)
- Suzuki DRZ400SM (2020, 2021, 2022, 2023, 2024, 2025, 2026)
- Designed for modern DRZ400 platform engines
โ FAQ
- Q: What displacement does this kit achieve?
A: This setup increases engine size to approximately 470cc using a 94mm bore and +4mm stroke.
- Q: Is this a complete engine rebuild kit?
A: Yes, it includes both top and bottom end components, bearings, gaskets, seals, clutch kit, and timing chain.
- Q: Is the crankshaft pre-assembled?
A: Yes, the Hot Rods stroker crank comes fully assembled with connecting rod installed.
- Q: Are all parts new?
A: Yes, every component in this kit is brand new and built for performance applications.
- Q: Does this kit include warranty?
A: Yes, this kit includes a 1-year warranty covering manufacturer defects.
๐ Why Buy from BPRATV
At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. We specialize in high-performance powersports components trusted by riders and builders who demand reliability and results. Every part is carefully selected for precision, durability, and real-world performance. Trust BPRATV to keep your Suzuki DRZ400S / DRZ400SM running at its best, every single time.
Unleash serious power from your DRZ โ upgrade to a 470cc stroker big bore engine today!
BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!
ยฉ BPRATV LLC
Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.
This product is exempt from the emission standards and related requirements of 40 C.F.R. ยง1051 as provided by 40 C.F.R. ยง1051.620, and California law. This product is sold only for use in connection with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing.
