Rod,i'm not busting yer balls here but since you say you may go with caddy power why not just find a AMC 360,390 or 401?you will spend the same if not more beefing a caddy motor.it will be soo much easier than a cad motor ,you can even use your existing 6 banger crossmember and don't tell me its because of money becuase i barely make anything yet sheer determination and hard work will produce me a bad ass 4 speed AMC 360 powered 73 Gremlin.again i'm NOT trying to bust your balls just offering some advice regards Bart M. 73 Gremlin AMC 360/T10