does anyone know the torque specs and pattern for a 96 trailblazer 250, for head bolts and cylinder bolts. Thanks

 

Torque in a criss-cross pattern kind of like this



2 5
4 3
1

for the head bolts. Tighten to 17-18 ft-lb in at least 3 stages (finger tight, 1/2 torque, full torque).

Tighten the cylinder base to 25-29 ft-lb in an x pattern, also in at least 3 stages.

Good luck.