1" Pro Spiral Spacer 32/36 & 38 LC Engineering's spiral adapter was developed to enhance mid-range power, torque, and fuel efficiency. The unique dyno-proven spiral bore of the LC Engineering adapter causes the incoming air-charge to spin as it passes...

Crankshaft Scraper (Full Perimeter) During regular engine operation, a significant amount of oil adheres to or becomes entrained in, a cloud surrounding the spinning bottom end. This oil eats up the horsepower your engine is making by increasing the...

Water Pump Pulley (Billet 6") The 6" polished Underdrive Pulleys can reduce water pump RPM and dress up the front of your engine. These pulleys are CNC machined from billet 6061 T-6 aluminum bar stock and cut with performance lightening holes to reduce...

Pro Rocker Shaft Set Since Toyota has discontinued the sale of its rocker shafts, we have been determined to bring an OEM or better quality shaft back to the market. We've partnered up with the original manufacturer in Japan to bring these shafts that...

Pro Bronze Valve Guide Set Valve Guides are made of the highest quality manganese bronze material available. This provides additional clearance between the retainer and seal for increased valve lift. Valve Guides provide excellent stability so they can...

Holley Fuel Pressure Regulator (1-4lbs) The regulator's job is to keep the pressure in the fuel system at a constant psi (Weber carbs work best in the 2.5-3psi range). Your fuel pressure regulator controls the amount and speed at which fuel is used by...

Sidedraft Carburetor Velocity Stacks (Air Horns / Shorty) Velocity Stacks or "Air Horns" allow smooth and even entry of air at high velocities into the intake tract, and replaces the ducting from the air-box (on EFI applications) providing a cleaner...

Throttle Body Air Horn Kit Designed to improve the air flow capabilities of a Sidedraft Throttle Body, these air horns are manufactured & machined in-house for the maximum accuracy and quality. The full radius design is accepted by the performance...

Carburetor Jet Kit (High Elevation / Fuel Economy) This kit is used to lean the air/fuel mixture for economy / high elevation tuning. A properly jetted carburetor, that worked well a couple of years ago, may have lost some of its performance due to...

Performance Jet Kit This kit is used to make the air/fuel mixture richer. A properly jetted carburetor, that worked well a couple of years ago, may have lost some of its performance due to today's leaner fuels. Some symptoms of a lean fuel condition...

Holley 350/500 Carb to Weber Manifold Adapter Kit We manufacture these billet aluminum carb adapters in house, to our specs. We use only the finest materials in our spacers to assure the quality you would expect from LC Engineering. These are CNC...

1" Phenolic Spacer Made by LC Engineering, these adapters and spacers are made from the finest materials available. Keep power-robbing heat away from your carb with these 1" thick Phenolic Spacers. Contact our Tech Support Line for further...