Pressure die cast with machined mating surfaces to ensure a leak free installation.
Remember all the "Cal Custom" products that every speed shop stocked in the '60s & '70s? That polished aluminum & those cool fins were the look to have. now we have that look again in an oil pan & a pair of valve covers created in the great "Cal Custom" tradition. Add a pair of valve covers up top & mount that finned aluminum oil pan on the bottom end & you've created a cool, customized engine bay quickly & easily.
No questions.