Cranking Compression

[BIGJEFFSCV]

Can someone tell me the cranking compression on an 02 Duramax?
Thanks

[DmaxMaverick]

(edited)

400 - 458 PSI. Engine up to operating temp, batteries well charged, all glow plugs out, and take reading with 6 puffs. All cylinders within 10% of the others. Weak batteries, any glowplugs in, or a cold engine will skew your results. DO NOT add oil to the cylinders! You'll blow up your gage.

[Duramaster]

Minimum is 300 PSI. :)