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Idiomas disponibles
Idiomas disponibles
PERFORMANCE
GM
PARTS
ZZ572/620 and ZZ572/720R High Performance Engine Torque Specifications:
Note: See Deluxe Specifications for additional torque values not included here.
Fastener
Main bolt (inner/outer)
Windage tray studs
Galley plug, 1/8" NPT
Galley plug, 1/4" NPT
Galley plug, 1/2" NPT
Oil filter adapter
Connecting rod bolt
Coolant plug, 3/4" NPT
ZZ572/620 and ZZ572/720R High Performance Engine Assembly Specifications:
Displacement:
Bore x Stroke:
Deck Height
Block:
Crankshaft:
Connecting Rods:
Pistons:
Piston rings
Oil Pressure (Normal):
Recommended Oil
Firing Order:
Information may vary with application. All specifications listed are based on the latest production information
available at the time of printing.
Starter:
The starter recommended by GM is a high-torque mini starter. It is a compact starter that delivers plenty of torque
in a small package which offers increased clearance for extended oil pans and exhaust systems. It is available
either black, GM part number 12361146, or chrome, GM part number 12363128.
ZZ572/620 and ZZ572/720R Short Block Specifications REV 15JA08
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GMSPO SPECIFICATIONS.
Torque (lb.ft.)
Torque (Nm)
110
149
110
149
15
20
20
27
40
54
50
68
80
109
55
75
572 cubic inches
4.560 inch x 4.375 inch
10.2" from crankshaft centerline
Cast iron, four-bolt intermediate mains with splayed outers
4340 forged steel with a one-piece rear seal design. Internally balanced.
6.535" center to center. Forged 4340 steel. H-beam style, shot peened
Forged aluminum with full floating wrist pins
Plasma-moly rings
55 psi @ 1500 RPM
20w50 synthetic racing (after break-in)
1-8-4-3-6-5-7-2
DATE
GENERAL MOTORS
SERVICE PARTS OPERATIONS
6200 Grand Pointe Drive, Grand Blanc, MI 48439
Thread Treatment
30 weight oil
30 weight oil
Teflon pipe sealant
Teflon pipe sealant
Teflon pipe sealant
Blue Loctite
30 weight oil
Teflon pipe sealant
88962927
PART NO.
REVISION
Notes
Torque sequence
—-
For cast iron
For cast iron
For cast iron
—-
—-
For cast iron
4
15
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