Volvo Penta 5.0L (305 ci) , 5.7L (350 ci), 7.4L (454 ci), 8.2L (502 ci), 8.1L (496 ci) exhaust manifolds, risers, mounting kits listed in this section. To help you in your search, a 5.0L = 305 ci, 5.7L = 350 ci, 7.4L = 454 ci, 8.2L = 502 ci and a 8.1L = 496 ci.