Richard is always testing LS, Small Blocks, Big Blocks, Mod Motors, Hemis, and more, but he also digs testing what he calls “The Other Guys”. And in pursuit of awesome testing and fun, he decided that one of the engines he absolutely had to test was the Slant 6. Mopars all mighty “Leaning Tower of Power” is arguably one of the more prolific inline 6 cylinder engines, because it came in EVERY single rear-wheel drive car, truck, and van that Mopar made from 1959 to 1987 and was then still built until 2000 for industrial applications. While they were never a high-performance engine like the V8s, they did make more power than most any other domestic inline-6 offering.

And like most things Mopar, there are a die-hard group of weirdos, I mean enthusiasts, who love making power with them. Like any other engine, if you improve airflow into and out of the cylinders then you will make more power and there have been a few companies making performance parts to do just that over the years.

Richard’s plan was to test this engine in stock form, and then start bolting on both factory and aftermarket parts to see just how much power it can make before throwing boost at it to make it really sing. This engine started out as a 1977-1983 model referred to as the “Super Six” and was rated at 110 horsepower. I think he can get significantly more out of it than that. I only wish he was starting with an earlier model, as the 1976 and earlier models featured forged crankshafts. Then maybe we could have convinced him to throw a set of rods and pistons in it and go for real power before it blows up!

Unfortunately this one has an issue, and Richard is going to have to do some work to it before baseline testing can commence. Watch and see why.

Here is Richard’s Video Description:

THE OTHER GUYS-DODGE SLANT 6, DIAGNOSE AND REPAIR-WHAT HAPPENS WHEN YOUR SLANT 6 HAS ONLY 5 GOOD HOLES? AFTER ARRIVING AT WESTECH WITH A FRESH (MEANING FREE AND USED) 225 (SUPER SIX) SLANT 6, I DISCOVERED I ONLY HAD A SLANT 5. THERE WAS ZERO COMPRESSION IN 1 CYLINDER. CHECK OUT HOW I DISCOVERED WHAT WAS WRONG AND HOW WE PLAN TO FIX IT! WE NEED 6 GOOD HOLES TO START TESTING.