The information contained in this publication is presented without any warranty. All the risk for its use is entirely assumed by the
user. Specific component design, mechanical procedures, and the qualifications of individual readers are beyond the control of
the publisher, and therefore the publisher disclaims all liability incurred in connection with the use of the information provided in
this publication.
Legal and Emissions Information
This publication is intended to provide information about the ZZ4 engine and related components. This
manual also describes procedures and modifications that may be useful during the installation of a ZZ4
engine. It is not intended to replace the comprehensive service manuals and parts catalogs which cover
Chevrolet engines and components. Rather, it is designed to provide supplemental information in areas of
interest to "do-it-yourself" enthusiasts and mechanics.
This publication pertains to engines and vehicles which are used off the public highways except where
specifically noted otherwise. Federal law restricts the removal of any part of a federally required emission
control system on motor vehicles. Further, many states have enacted laws which prohibit tampering with
or modifying any required emission or noise control system. Vehicles which are not operated on public
highways are generally exempt from most regulations, as are some special interest and pre-emission
vehicles. The reader is strongly urged to check all applicable local and state laws.
Many of the parts described or listed in this manual are merchandised for off-highway application only, and
are tagged with the "Special Parts Notice" reproduced here:
Special Parts Notice
This part has been specifically designed for Off-Highway application only. Since the installation of this
part may either impair your vehicle's emission control performance or be uncertified under current Motor
Vehicle Safety Standards, it should not be installed in a vehicle used on any street or highway. Additionally,
any such application could adversely affect the warranty coverage of such an on-street or highway vehicle.
Chevrolet, Chevy, the Chevrolet Bow Tie Emblem, General Motors, and GM are all registered trademarks of the General Motors
Company.
Package contents:
Item Description
1
Engine Assembly
2
Short Block Instructions
3
Long Block Instructions
ZZ4 Engine Long Block Specifications
TITLE
Quantity
GM Part Number
1
24502609
1
19172279
1
19172321
REV 09JA15
PART NO.
19172321
SHEET
2
27
OF