BRC 510CC CONVERSION KIT KTM CARB 2017-2018

The BRC 510cc conversion kit is a donor-engine conversion package for 2017-2018 KTM 250 and 300 EXC/XC-W carburetted models, intended to rebuild the original engine into a 510cc configuration. It is designed for strip-down and assembly work using supplied conversion components together with selected parts from the existing engine, rather than as a complete ready-to-run engine.

Important Information

• This is a conversion kit that uses the engine from the listed application and reuses parts from the original engine to build the 510cc engine.


• The build reuses the donor engine’s transmission, clutch assembly, kicker assembly, water pump, intake, ignition and covers where possible.


• Due to the value of the kit, it is shipped on a single small pallet.


• No warranty is implied or given due to the custom nature of the kit.


• Check that all supplied and reused parts are correct before beginning assembly.


• Due to US and EU model differences, modifications may be required to mounts, exhaust or other supporting parts.


• A signed waiver confirming acceptance of these conditions is required before dispatch.

Features

• Pneumatic power valve system


• Linear, smooth power delivery


• Accepts the donor 5-speed or 6-speed transmission


• Compatible with kick start and electric start arrangements


• Decompression button fitted to assist starting


• Integral counterbalance shaft


• Intended to run with the stock donor carburettor on carburetted applications

Kit Contents

• Pipe


• Silencer


• Moto Tassinari VForce 4R reed cage

Specifications

• Bore: 89 mm


• Stroke: 82 mm


• Displacement: 510 cc


• Power output: 60+ hp


• Torque output: 50+ ft-lb


• Compression ratio: 12.5:1


• Squish clearance: 1.47-2.00 mm


• Primary ratio: 2.25 (72:32)


• Compatible carburettor size: 36 mm or 38 mm


• Base gasket thickness options: 0.3 mm, 0.4 mm, 0.5 mm


• Premix ratio: 50:1


• Premix ratio for snowbike and desert use: 32:1


• Minimum fuel octane: 91


• Carburetted model sensor port plug bolt size: M10 x 12

Cross-Reference OEM Part Numbers

• Moto Tassinari V426


• Vertex 22447


• ProX 03.1406


• Wossner P2044


• NGK BPR7EIX


• NGK BKR7EIX


• NGK BKR8EIX


• 07-09-017


• 07-09-019

Vehicle Fitments

• KTM 250 EXC 2017-2018, carburetted models


• KTM 300 EXC 2017-2018, carburetted models


• KTM 250 XC-W 2017-2018, carburetted models


• KTM 300 XC-W 2017-2018, carburetted models