What is your 451 stroker combo?

Congrats on the 511! On the street and some strip, especially in a B/E-body, a nice 451 with a tad more torque, is the 3.915" stroke 383. The blocks aren't as strong as a 400 for ultimate power capacity, but under 600hp N/A it will last forever. OE ported iron heads or small port (Promaxx, RPM, Sidewinder, Stealth, etc.) heads are ideal for this CID/stroke. I'm doing one at some point (have the pieces already) using a 383 block, 440 Source 4340 crank (but you can use an offset ground 440 crank with cut mains and counterweights), SCAT 6.700" I-beam rods and Diamond 4.280" x 1.320"CH pistons. Lightweight assembly (smaller pistons and shorter rods=lighter than a 400 based 451) and plenty of bore (only .040" smaller than a 440). Anything larger (489/496) really needs bigger heads and then makes more block flexing power, and you might want to consider a 400 block, but this really peps up that 383 sitting in the corner, passed up for a 440.