Originally Posted by gal429460
ive got a 4 barrel 429 with d3ve a2a heads. i would say that this motor is all original. if i were to convert it to a 460 by fitting a 460 crank and standard style 460 pistons what would my new compression ratio be? is there an automatic increase in the compression ratio by going from a 429 to a 460 while still using the original d3ve heads? how is the 460 motor compared to the 429 in regards to its feel, performance, drivability, fuel economy, revs, or any other factors you can give me. thanks, paul.