Corporation RPM Buick Cylinder Heads Installation Instructions

Catalog #60039, #60049

Rev. 2/07 - RS/mc Page 3 of 4

Brochure #63-60039

Installation is the same as for original equipment cylinder heads. Consult

service manual for specific procedures, if necessary. Be sure that the

surface of the block and the surface of the head are thoroughly cleaned

to remove any oily film before installation. Use alcohol or lacquer thinner

on a lint-free rag to clean. Apply oil or suitable thread lubricant to head

bolt threads and the underside of bolt heads and washers to prevent

galling and improper torque readings. Use thread sealant on any bolts

that go into coolant passages. Torque top row of bolts to 110 ft./lbs. and

bottom row of bolts to 100 ft./lbs. in three or four steps, following the

factory tightening sequence

(See Figure 1)

. A re-torque is

recommended after the initial star-up and cool-down (allow 2-3 hours for

adequate cooling).

INSTALLATION PROCEDURE

Figure 1 - Buick Cylinder Head Bolt Torque Sequence

Torque Top Row of Bolts to 110 ft./lbs.

Torque Bottom Row of Bolt s to 100 ft./lbs.

(Torque Bolts in 3 to 4 steps, gradually approaching final torque spec)

Other Assembly Tips: When installing the sparkplugs and exhaust

manifolds, be sure to use a high temperature anti-seize compound on the

threads to reduce the possibility of thread damage in the future. Do not

exceed a torque of 25 ft./lbs. on the intake manifold bolts and lubricate

the bolt threads prior to assembly.

NOTE: Torque sparkplugs to 10 ft./lbs. Do not over tighten

sparkplugs! If short reach plug is used, poor performance and

possible engine damage may occur.