SS (1961-Lancer ) build !!
Cylinder heads will be limiting factor , they are Vintage
Direct Connection / Bob Mullen creations circle track heads part # P4007194 offered thru Direct Connection catalog in 1975 a year before W2s came out. In some vintage Mopar papers these are referred as W1s.
They rest of the engine is top quality parts and a big Solid roller
3.20 stroke crank 6.200 small journal Chebby rods
321 CI.