This 1990 Chevrolet Astro Van originally came from the factory with a 4.3L V6 engine. The Chevy Astro is a good choice for a LT1 swap since the 4.3L V6 is based off the Chevy V8 engine. Many of the same parts work for for both. This LT1 has an Edelbrock intake, 600 CFM carburetor, and is mated to a 4L60 transmission. The van being held back by some engine and traction issues is still able to run 14.8 seconds in the quarter mile.