rr69half6bbl

Hey zeek, yes you can put the 361 heads on a 440. they will work, But why would you want too? The 361was used through 67. then they made a better casting head in 68. The pre-68 heads are a closed chamber design. meaning the wuench area od the head is smaller then the post 67 which are open chambered heads. the pre 67`s are also smaller valved then the open heads, thus they dont flow as good. You can put bigger valves and do some port work on the pre67`s but thast alot of money wasted when you can do half the work on post 67`s and get more for your money. the only bonus you really get using the post 67`s if you do the machine work. is that they give you like 1 more point of compression. like a pre 67 head would be 10-1on comp. vs. an open would be 9-1, thats because you have more quench area at the top of the head. and if your planning on running pump gas you dont want anything morethen 10-1. the gas is low grade and you`ll get ignition ping real bad, when you nail it and it knocks and blos black smoke real bad. I have a 10.5-1 440 in my runner and I have to run 7 gal of race gas 114 octane and the rest 94 or it wont run. it rattles really bad. just something to consider.

rr69half6bbl

your welcome babe, Glad to be of help.