Are you using the existing exhaust? Are you replacing the exhaust or having some made? 273 manifolds would be correct. Some 318 manifolds may work with or without some modifications depending on what they came out of. 340 manifolds are the same.
Are you using the existing exhaust? Are you replacing the exhaust or having some made? 273 manifolds would be correct. Some 318 manifolds may work with or without some modifications depending on what they came out of. 340 manifolds are the same.
