Join Date: Aug 1998
Location: Waldorf Md. USA
Allright ... got smart and looked in my AERA software and here is what I found. It verifies that even though the bolts use the "Torque -Angle" method to tighten them, they are NOT TTY bolts and can be reused.
Cylinder Head Installation On
1996-98 GM 5.7L VIN R Engines
The AERA Technical Committee offers the following information on cylinder head installation for 1996-98 GM 5.7L VIN R engines. This information is somewhat different than previous engines. GM is now recommending a torque turn method of tightening the cylinder head for this engine. It does not however, use a torque-to-yield bolt to mount the cylinder heads.
The cylinder head mounting bolts may be reused if they are not damaged in the threads or show neck-down or stretch condition. The bolts should be thoroughly cleaned of sealer before inspection and installation. Cleaned bolts should have a coating of GM sealing compound Part #1052080 applied to the threaded area only. The use of an aftermarket equivalent sealing compound is also acceptable to use on threads.
Follow the steps listed below to correctly install head gaskets for this engine being careful not to get any seal on the head gasket mating surfaces or gasket.
1. Place the head gasket over dowels with the bead up.
2. Carefully guide the cylinder head into position over the dowel pins and gasket.
3. Coat threads of the head bolts with sealing compound and finger tighten all bolts.
4. Tighten all bolts in sequence shown below to 22 ft. lbs.
5. Tighten all bolts in sequence an additional turn in degrees, using J 36660 tool.
Short bolts (3,4,7,8,11,12,15,16)
additional 55 degrees.
Medium Bolts (14,17) Additional 65degrees
Long Bolts (1,2,3,5,6,9,10,13) Additional 75 degrees
The bolt numbers correspond to the "normal" Small Block torque sequence.
The AERA Technical Committee
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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