They are closed chambered,large valves,large oval ports with cast # 336781. What kind of heads are these? Are they any good? The guy at the machine shop told me that they were very desirable heads! What does he mean? Thanks 396
They are closed chambered,large valves,large oval ports with cast # 336781. What kind of heads are these? Are they any good? The guy at the machine shop told me that they were very desirable heads! What does he mean? Thanks 396