20R Weber 40mm Sidedraft Carburetor Kit
20R Weber 40mm Sidedraft Carburetor Kit
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Our Price: $1,699.95
Shipping Delay: Usually Ships in 2 to 3 Weeks

Part Number: 1030012

Additional Labor Options:

Drilled and Tapped for Nitrous*:

Hand Ported and Polished Manifold*:

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Fuel Pressure Regulator & Gauge?*:

Details Fitment Instructions

Sidedraft Carburetor Kit

(Weber 40mm)

LC Engineering is known for offering the most powerful and proven Toyota Carburetor kits available. Our dedication to performance has set a standard no one can match! Extensive road and dyno testing have allowed us to produce exceptional kits that offer a wide range of performance options. When you want to make that 20R bark, you need sidedrafts!! LC Engineering has done all the assembly for you. These kits include (2) sidedraft carbs, intake manifold, air horns, air filters, and linkage kit. LC Engineering then completely assembles the kit, so all you have to do is install and tune. Pro Sidedraft Carb Kits are for more radically modified engines. To aid in fitment, the distance from the head surface to the top of air cleaner on this setup is 12.5". Please make sure you have adequate clearance in your engine compartment.


  • Two 40mm Carburetors
  • Idle Circuit Calibration
  • Pro 20R Manifold
  • Complete Throttle Linkage
  • Throttle Cable Upgrade
  • Two Large K&N Air Cleaners
  • Completely Assembled Carburetor Insulator Mounts
  • Intake Gasket

Labor Options Available:

  • Drilled and Tapped for Nitrous (+$70)
  • Hand Ported and Polished Manifold (+$70)

NOTE: Must use an electric fuel pump. If you are planning on running an 83-95 style thermostat housing you will also need to utilize one of our thermostat housing adapters, see Part #: 1032086. Requires 2.5 - 3 lbs of fuel pressure, see Part #: 1035056. Removes heater supply, you will need the Pro Water Block Plate Kit 1016015 Does not have provisions for pcv valve vacuum or front of valve cover breather hose. Because of this, oil will get dirty in a couple hundred miles. Plan on changing your oil quite often running these. They are geared towards racing where these systems are not used. We also follow the rule of 40mm for pump gas, 45mm for race fuel.

This product should not be used in a manner that violates Federal EPA Laws.

Contact our Tech Support Line for further information at 928-855-6341.

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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.

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