NEW BOLT KITS for 604's with "GM" Stamping on Dome Heads, Glyph Marking (BAR CODE). These bolts are copies of the factory bolts used to seal the GM 604 Crate Engine. They are tested, Zinc coated and rust resistant. GM logo is later etched along with the info glyph.

A 8PC. Complete set.

Placement:

Intake Manifold: 604-D.S.& P.S. 2 nd Hole Back-Intake manifold bolt 11 ft lbs.

Oil Pan: Front Two positions-Oil pan assembly Corner Bolt 15 ft.-lbs.

Cylinder Heads: #1 AND 2 cylinder second bolt back from front on both sides-Cylinder head bolt 65 ft. - lbs.

Timing Cover: 604- 2nd two positions-Timing Cover bolt 97 inch.-lbs.

Sealing bolt installation: Torque heads, intakes, front cover and oil pan with stock bolts in all locations prior to installing sealing bolts. After final torque is done, remove stock bolt and install sealing bolt and tighten until head breaks off. Do not install sealing bolt first.