WISECO

http://www.raceeng.com/

Dish ~16cc

Part #R18309391

land width        0.325, 0.200, 0.100

groove width    0.041, 0.049, 0.1113

rings              1.0mm, 1.2mm, 2.8mm

comp height     1.383

deck thickness  0.393 

dish                0.148

weight     386-386.4

Compared to Stock

http://www.midwestturbo.com/

Dish ~6cc

Part #971947646

land width        0.270, 0.180, 0.100

groove width    0.0607, 0.0607, 0.1570

rings              1.5mm, 1.5mm, 4.0mm

comp height     1.388

deck thickness  0.333 

dish                0.053

weight     388.7-389.9

this example: bore 3.607 (.020 over) w/suggested piston-to-cylinder clearance of .0030

These two compared:

                                                        difference

comp height      1.383       1.388          .005

deck thickness  0.393       0.333           .060

dish                  0.148       0.053           .095

weight      386-386.4    388.7-389.9   2.7grams