Chiphead - offset holes on 283 covers were early production. on the other hand, most V8 57 pickups had the 265. 283 started very late 57 for pickups.
Lionel - 283 or 327, don't let the best motor Chev ever had [next to 235
] go to waste! I've got a pile of'em, but they ain't makin'em any more!
Bill
