Chrysler LA / NASCAR 355 cu. in. crank shaft

Mopar had custom pistons for those cranks back in the day. If somebody has some good, old 340 pistons, one could take some careful measurements to see if the tops are thick enough to mill down. An unmilled block would help. It would be a good way to save some weight on some of the old TRW or Speed Pros. Gotta check counterweight clearance to the piston bottoms too. A forged low compression 340 piston might be a good candidate, preferably with valve notches. Along the same lines as the original "Hoover's Mover" (360 with modified OEM low compression 340 pistons), but with less stroke and less milling to worry about.

Years ago I had a set of the 3.454" stroke 355 pistons and had them milled to work with a 3.58" 360 crank! I might still have them buried somewhere.

I'm pretty sure they were only available with 318/340 mains and an 8 bolt flange.

355 V8: The Mopar LA Racing V8 Engine