GM V6

In the ‘80s, GM used a 4.3L 90-degree V6 in many different cars. I know that this engine is basically a small-block Chevy with two cylinders removed. This got me to wondering why they haven’t built a 90-degree V6 using the 5.3L or 6.0L LS engines? M.S. Jeff Smith: This is a great “what if”