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Chevy LS6 Spark Plug Torque Question
Posted to Technical Discussion Forum on 2/17/2024 28 Replies

The factory SI for these 14-mm, taper-seat plugs reads as follows:

Spark Plugs - Cylinder Heads - New 20 N-m; 15 lb-ft

Spark Plugs - all Subsequent Installations - 15 N-m; 11 lb-ft

I take this to mean that if the cylinder head is new, the torque value is... Login to read more.

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