E-street vs Promaxx vs 440 Source

448 is a .040 over 440, stock stroke.

LY are the std stock rods...... not the 6bbl/HD rods.

Trw stock replacement .040 over pistons for a 68/69 440. Stock weight (almost 1100g).

Not honed with a deck plate.

Factory steel crank turned 20/20

Rotating assy was balanced.

It was basically a stock rebuilt bottom end that got balanced.