It's under the cylinder swing near the barrel.
submit your question to: coltautos.com
Average Price is about $1295 upto $2000 Canadian for this item, you can find them more around the $1300-1400 price more frequently.
45 ACP, 455 Eley.
check at : gunsamerica.com gunsinternational.co gunbroker.com
50-2500 usd
there is a slight difference between the 45 and 455. check with a gunsmith ig you wish to have it shoot 45 acp
suggest you check with a gunsmith. I believe there is a slight difference between the 455 cal and 45 cal. however, I also believe the 455 cal can be changed (by gunsmith) to the 45 cal.
100 to multiple thousands depedning on specifics
455
7100 made
Yes i Don't know how many Oldsmobile Cutlass 455 were made but it wasn't as many as the Oldsmobile 350 Rocket. So it was a big plus if you had the 455 engine because it wasn't as many around.