Factory shop manual (1989) discusses aluminum head
considerations (anti-seize etc.) and says 22 Ft-lbs.
Happened to look in Haynes for C4s. It says 22 Ft-lbs for
cast iron heads and 12 Ft-lbs. for aluminum heads. Does not
distinguish between L98s and LT-1s.
Misprint in the 1989 Factory Manual ??? Wonder what the
1990 manual says?
The old plugs came out very-very easily. Measured the cold
torque on two of the old plugs -- 15 on one, 19 on another.
Ideas? Anyone have a 1990 manual?