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ZZ572/620 and ZZ572/720R High Performance Engine Torque Specifications:
Note: See Deluxe Specifications for additional torque values not included here.
Fastener
Windage tray studs
Oil pump bolt
Cam thrust plate bolt
Cam sprocket bolt
Front cover bolt
Oil pan bolt
Damper bolt
Cylinder head bolt
Rocker arm stud
Rocker cover bolt
Fuel pump cover bolt
Lifter retainer bolt
Spark plug
Valley head bolt
Note: These torque values are in addition to those documented within the short block instructions.
Cylinder Head Installation:
Installation is the same as for original equipment cylinder heads with the exception of two additional cylinder head bolts
located inside the lifter valley as noted below. Be sure to thoroughly clean the surface of the block and the surface of the
cylinder head prior to installing. Apply Moly-lube thread lubricant to all head bolt threads. Apply liquid Teflon to the valley
head bolts that protrude into the intake runners. Tighten the bolts alternately per the sequence and pattern shown below.
Apply torque in 25 ft.lb. increments over two repetitions with the third repetition to the final tightening specification. A re-
torque of the cylinder head bolts is recommended after heat cycling the engine.
ZZ572/620 and ZZ572/720R Long Block Specifications
TITLE
Torque (lb.ft.)
Torque (Nm)
30
41
65
88
10
14
22
30
10
14
20
27
110
149
70
95
50
68
10
14
25
34
18
24
25
34
60
81
FRONT
Thread Treatment
30 weight oil
30 weight oil
Blue Loctite
Blue Loctite
Blue Loctite
Blue Loctite
Blue Loctite
Moly-lube
Blue Loctite
30 weight oil
Blue Loctite
Blue Loctite
30 weight oil
Liquid Teflon
VALLEY HEAD BOLT
88962928
REV 16JA15
PART NO.
Notes
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Torque sequence, see below
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—-
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3
SHEET
23
OF
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