Licensed reproduction right-side (passenger) big block high-performance exhaust manifold, casting number 2899879, for 1970-1971 Dodge and Plymouth B-Body and E-Body models including the Cuda, Challenger, Road Runner, GTX, Charger, Coronet R/T, Super Bee, and Superbird. Correctly marked with factory casting details and includes the installed heat riser valve assembly, ready to bolt on in place of manifolds that are often missing, rusted, pitted, or cracked.