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Ford / Chevy / Dodge/ Universal 4 Barrel V8 Propane Kits
4 barrel Holley, Edelbrock, Ford,Chevy, Mopar etc...with square bore manifold. This is the most common intake pattern on most V6 and V8 4 barrel engines. Especially with aftermarket intake manifolds. This is propane only.
High Performance Impco Four Barrel Propane Conversion on Supercharged Chevy Engine
Our 4 barrel kits will fit any engine with a square bore intake pattern. This would be most any aftermarket intake manifold for Ford, Chevy, AMC, Dodge, etc. This is the same pattern as an Edelbrock or Holley carb. This is the kit recommended for all V6 and V8 engines. These are perfect on stock motors as well as engines producing a continuous 420hp. The picture shows a top view of the propane carburetor on a supercharged engine without an air filter installed. You re-use your old air filter as it will bolt right on!

These kits are designed for excellent low to high range operation. These kits run extremely strong, and in many cases the engine makes more power. This kit bolts on in about 3 hours for the average mechanic. Look for this kit to make a dramatic difference on your vehicle. Because of the high octane you can advance the timing a lot more. This setup is extremely easy to tune and keeps it's tune maintenance free for years at a time!
It works perfectly on stock and modified engines up to 420 H.P. motors as well.
This kit is street legal as long as your local emissions laws allow it.

Beware of "cheaper" kits that do not have throttle plates and other important parts necessary to complete the project. Our pricing also reflects the silicone upgrades to the equipment. This is very important. These are pre assembled and pre adjusted for easy start up right out of the box!

This includes a brand new Holley throttle plate assembly and silicone upgrades! These are all new IMPCO Carburetors and Regulators! This bolts on in place of your existing carburetor and is already set up for your vacuum advance. This kit includes everything you'll need to do it right the first time and has been upgraded internally from rubber to silicone parts, at least tripling the service life!


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High Horsepower V8 in a Rockbouncer
High Horsepower V8 Propane Kit on a Rock Bouncer.
Super High Performance Propane Kits up to 800H.P.!!
Call for details! 4 barrel propane kit on V8 engine
4 Barrel V8 Propane Kit on modified Jeep with Rockwell axles.
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High Performance Dual Carb Propane Kit
600+ Dual Carb Kit pictured above.