Nice used original pair of 1974 Plymouth Road Runner 318 Exhaust Manifolds. Casting numbers 3671398-400. 10-2 and 10-5-73 dates. Say 318 RR on them. Never had a heat riser. Thanks for looking in our store. We combine shipping. Satisfaction
guaranteed or your money back. If you would like to speak with me
directly call Chet at 401-397-1825.