There are a slew of engines that have come and gone over the years that were good runners, yet largely underappreciated by the masses. In today’s world hot rodders have an insane number of options to choose from regarding power plants. Old engines have developed niche followings large enough to support the building of weirdo aluminum heads and other components for mills that have been set aside for decades. More than one engine family has been schluffed off by the public but performed admirably.
Hell, looking back into the 1940s and 1950s there was the infamous Hudson “Twin-H” six cylinder that had all the engineering sexiness of a claw hammer and still managed to mop up on the NASCAR circuit, that engine, mostly forgotten today was certainly a huge underdog back when. There were people running those things in NHRA stock eliminator into the 1970s and by the time most of them quit they were down into the low 14 second range and that is with the restrictive rules of stock!
Maybe entries from Buick, Olds, AMC, etc? We want to know what your opinion is regarding the most underrated, under estimated engine of all time. That 390ci AMC mill shown in the lead photo was a thumper that made big torque and helped shove many finely tuned Super Stockers down the track in record time, but is big time short on love!
So, what is the most under rated/under estimated factory engine of all time?