[Jeff Higgins]

The Polara and Coronet are two different bodies; nothing interchanges.

Angela, I can't remember what year the 273 was bumped to 318. It was somewhere back in that timeframe. I can tell big blocks apart at a glance - "B" vs. "RB" blocks, original Stage III heads from the rest, etc. I'm just not all that up on the small blocks.

The Coronet 500 came standard with a 383, just to further confuse matters. I was never sure what the "440" and "500" meant. Mine was a '67 Coronet, in a very easily distinguishable guise - it was an R/T. Only two engine options in the R/T back then, the 440 and the Hemi. Mine was a 440. Being a '67, it had the sought after small chamber heads as well - good for over 11:1 compression with flat top pistons.

I drag raced several big block MOPAR's from the late '70's through the mid '80's. Very easy and cheap motors to get really big power out of, along with all-season-long reliability. Hell, I ran one 383 for three years and never had the valve covers or oil pan off of it. Great motors.

Oh - and with the small block, you won't get the 727, either. It will be the smaller Torque Flite, I just can't remember the number on it. I think it was some 900 series or something.