Ok I under stand that But it will save you money in the long run sell the 340 .. Get you a running 318 from a truck off CL .. Should run ya bout 500 bucks make sure you can hear it run . But for the love of god dont put the chevy in it . If i had a 340 laying around i would sell that Mother Fu##er and buy arunning 318 to put in it if i wanted to get one of my cars running now