[SCOTI]

Originally Posted by Marv D

Are you thinking the 210's are too much $'s ??? or too much runner for a 406??? I sure wouldn't want anything smaller than a 200-210cc runner on a 406, in anything less than a towtruck motor myself. But that's just my opinion.

A 406 with a stock 22cc "D" dished piston, sitting 0.025" in the hole will have 8.96:1 compression with a 68cc chamber and a 0.041" FelPro gasket. The "D" dish will keep the quench tight, open the total chamber up for the low compression your looking for. Pistons are a lot cheaper than heads

210's are overkill for a mild street motor that's being designed for torque, hence "too much". If you're building everything else to benefit that air flow, they're great. I agree on it costs less to change pistons vs. heads. But, unless you're in the thick of building motors regularly, new stuff always comes out that sometimes makes what 'was' the hot ticket, outdated.