SKU: 27705636513

TB 88cc Big Bore kit, Race Head, & 20mm Carb Kit – K0-78 Models

Sale price$189.00 Regular price$210.00
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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15

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Description

TB 88cc Big Bore kit, Race Head, & 20mm Carb Kit – K0-78 ModelsTB 88cc Big Bore kit, Race Head, & 20mm Carb Kit K0 78 Models TBparts complete 88cc bore kit, Race Head, and 20mm Performance carb kit. This complete 88cc Race Head Kit will really wake up your stock engine and is comparable in power to the much larger Chinese 124cc engines!!! They are extremely reliable as well! Made to our specifications turning your worn out stock engine into a high quality, high performance engine that makes big power! Starting

TB 88cc Big Bore kit, Race Head, & 20mm Carb Kit – K0-78 Models

TBparts complete 88cc bore kit, Race Head, and 20mm Performance carb kit. This complete 88cc Race Head Kit will really wake up your stock engine and is comparable in power to the much larger Chinese 124cc engines!!! They are extremely reliable as well! Made to our specifications turning your worn-out stock engine into a high-quality, high-performance engine that makes big power!

Starting with the 88cc 52mm Big Bore kit. Our aluminum steel sleeve cylinder is super lightweight compared to stock and it also helps with heat dissipation. The piston is high compression but safe for 91+ octane pump fuel. The bore kit also includes the top end gasket kit that includes all the gaskets for the job. Next is the race head included in this kit. This is what really sets our kit apart from the competition especially considering the price. When you replace your worn-out, carbon built up stock cylinder head with our new complete bolt on race head you get a ton more performance and power. Better geometry allows for a bigger cam, larger valves, and bigger, better porting. Plus, it is made to our specifications to keep quality in check with OEM standards. This is extremely important when turning big RPMs and making big power. Top that off with the 3mm larger 20mm performance carb kit to feed the new larger displacement engine. This also includes a port match manifold with all the necessary hardware.

Key Features:
  • Lightweight aluminum cylinder with steel sleeve
  • Cast in mounts on cylinder for aftermarket skid plates
  • Oversized cooling fins on cylinder for efficient heat dissipation
  • 52mm high compression piston with rings, pin, & clips
  • Head gasket kit and clutch cover gasket.
  • High performance race camshaft (for the Race Head only)
  • Race Head with larger 25/22mm stainless steel (21-4N material) valves for better flow and increased performance. Also has bigger cooling fins. Includes all necessary parts and comes assembled!
  • 20mm Performance carb assembly. Includes: 20mm carb, port matched intake, heatstop, gaskets, mounting hardware/wrench, long adjustable throttle cable, and an angled dual layer foam air filter.
Fitment:
  • Z50 K0-78 Models
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27705636513

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Reviewed in the United States on January 15, 2026
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Michael Mueller
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Reviewed in the United States on December 18, 2025
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Create58
Port Orchard, US
★★★★★ 5
Fits great
Excellent value for the money and fits great. Does exactly what you need it to.
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Reviewed in the United States on February 17, 2026
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Carlos J. Caballero
Chelsea, US
★★★★★ 5
buen articulo funciona perfecto.
buen articulo funciona perfecto.
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Reviewed in the United States on May 14, 2026
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N Dutta
Carnegie, US
★★★★★ 5
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