Hmmm that complicated huh? Well im not cheap on my car budget thats for sure but dang that would be crazy expensive. Im not sure of the rpm because it doest have an rpm gauge but it actually seems kinda high at 75. I know the rear end is quite low like you say (2.75 i think). The reason I started thinking of it is both gas mileage and performance. I thought sense there were so many 460 4 speed trannys that it might be a pretty cheap mod. But sounds like I was wrong on that theory. Okay well I am looking into the best bang for you buck performance for the 460 and im new to American muscle engines. I drive the car quite often but its not my only car so I am open to a lot of suggestions.you arent getting one without modifying anything... if you have the money and have to have a 4 speed auto, the only one thats going to work is a e40d out of a 94-97 pickup with a 460 in it... youll need a bauman controller... youll need to modify the floor pan... youll need to modify your driveshaft... its definitely not going to be easy or cheap. why do you feel the need for a 4 speed auto? the c-6 thats in your car now is as bulletproof as youre going to get... and with the rear end ratio your highway rpm will be plenty low
Okay any place you would recommend getting that? Well its not my only car but I do drive it quite a bit especially in the winter. The motor is completly stock other than I have taken off the stock intake for a k&n cleaner and assembly. Also I have 2.5" exhaust with an xpipe that was custom welded for the car. I my goal for it would be lively performance. Some day my 460 will need to be rebuilt I imagine because as far as I know that has never been done. But it runs great. I the carb was rebuilt, new oil pan, oil pump, head gasket.. and I think thats about it for the motor. I know the gas mileage with these motors doesnt get better but I also wouldn't like to lose a lot of mpg ether. My budget is bang for the buck. If its worth it I will pay it. But im not looking to go crazy. I have another car I put money into too and I try to keep myself from spending too much between them. Over time though I wouldnt mind putting in about another 5K into the car.if the 460 is still stock, then first thing to do cheap is get a new multi-keyway timing set and install it straight up 0- no advance or retard. set runs from about 50 to about 150 and will help a bit. if youre looking at building an engine for it- what are your goals and budget?
changing the timing set to an aftermarket one that allows for straight up timing will improve power and fuel economy. no downside. id just get the ford racing set from lem evans (bf evans race parts) hes a good guy with good prices and great service 1-877-611-2613
p.s. if youre good with a wrench the swap shouldnt take more than an afternoon, but be prepared to replace the water pump bolts too