428 or 455? (Do I Live Up To My Name?)
Ok, so I need this issue resolved unfortunately. I purchased what I thought was a 428 motor that had been stroked to 455. I have identified the block is indeed a 1970 428, now how can I tell if the engine has been stroked.
I do have a comp cams XE 262 in there, how would the car idle/perform with this cam in a 455 vs 428? This may be one way we can figure it out, right now the cam seems very mild with a very smooth idle. I am sure its pretty mild either way, but there should be a difference right?
Any help on this topic would be appreciated, and obviously easier methods are preferred.
Thanks again, and heres to hoping I didn't get ripped off. I am an honest guy and good money was paid to ensure I got a 455, I just hope I have it. Either way, both are great motors, but I hope its not an unnecessary trick, just so the builder could save some labor.