The engines that power our cars — even the smallest ones — are extremely heavy. While smaller engines like four-cylinders and V6s can weigh between 200 and 450 pounds, larger motors like heavy-duty ...
I've got a 1974 GMC Sprint project car. It was originally a 350 small-block Chevy with a TH350 trans, but I sold the engine and trans and installed a 454 [big-block] and TH400 trans in it.