".....Is that a 241?......"

Nope. First one is a 55 331 Bored to 354. Second one is a 55 331 bored to 341. Third is a 56 354 bored to 364.

They do run.

https://www.youtube.com/watch?v=pnleOpDyuJ8

.


1957 Plymouth (Hemi, Dual Quads, A833 4 Speed 9 1/4 w 4.10) Sold
1937 Dodge Pickup (Hemi, 6X2 intake, 46RH, Dana 60 w 4.56) Sold
1968 Plymouth Valiant 2dr sedan (354 HEMI, 46RH w/4.30 gears)