Mopar #'s Matching

Yes, I put all the good 273/4 stuff on that 318 block and it rocked. Im going by blueprint posted Mopar numbers here and as an owner of a 273/4 survivor that got a 318 heart. I too later moved on up to a .060 over 340, then a std bore 340 I aquired, then took the plunge and went big: 451 stroker. I have since gained my wits back in this narrow chassis and have gathered another 273, a snailed 225 and an injected 403.

from a past post on 273/4 dyno numbers.

"...273/235 HP was re-factored by the NHRA down to 220 HP in 1976, then
got another adjustment down to 210 HP..."