Thank you for choosing Chevrolet Performance as your high performance source. Chevrolet Performance is committed to providing proven, innovative
performance technology that is truly.... more than just power. Chevrolet Performance parts are engineered, developed and tested to exceed your expectations
for fit and function. Please refer to our catalog for the Chevrolet Performance Authorized Center nearest you or visit our website at
www.chevroletperformance.com.
This publication provides general information on components and procedures which may be useful when installing or servicing a 350/265 HP engine. Please read
this entire publication before starting work. Also, please verify that all of the components listed in the Package Contents section below were shipped in the kit.
The information below is divided into the following sections: package contents, component information, 350/265 HP engine specifications, additional parts that
you may need to purchase, torque specifications, and a service parts list.
The 350/265 HP engine incorporates modern technology in a package that can be installed in most applications where 265-400ci small block Chevrolet V-8s were
originally used. This complete engine is assembled using brand new, premium quality components. Due to the wide variety of vehicles in which a 350/265 HP
engine can be installed, some procedures and recommendations may not apply to specific applications.
The 350/265 HP engine is internally balanced and requires no balance weights on either the flywheel/flexplate or the harmonic balancer. A non-Vortech design
intake manifold must also be used. When using the 350/265 HP engine as a replacement for an original equipment engine, the performance intent of this engine
should be considered. The torque curve is higher and consequently may require a torque converter with a higher stall speed on automatic transmission equipped
vehicles. Consult with a reputable torque converter manufacturer for assistance in selecting the correct torque converter for your application.
The 350/265 HP engine is manufactured on current production tooling; consequently, you may encounter dissimilarities between the 350/265 HP engine assembly
and previous versions of the small block V-8. In general, items such as motor mounts, accessory drives, exhaust manifolds, etc. can be transferred to a 350/265
HP when it is installed in a vehicle originally equipped with a small block V-8 engine. However, as noted in the following sections, there may be minor differences
between a 350/265 HP engine and an older small block V-8 engine. These differences may require modifications or additional components not included with the
350/265 HP engine. When installing a 350/265 HP engine in a vehicle not originally equipped with a small block V-8, it may be necessary to adapt or fabricate
various components for the cooling, fuel, electrical, and exhaust systems.
It is not the intent of these specifications to replace the comprehensive and detailed service practices explained in the Chevrolet service manuals.
For information about warranty coverage, please contact your local Chevrolet Performance dealer.
Observe all safety precautions and warnings in the service manuals when installing a 350/265 HP engine in any vehicle. Wear eye protection and appropriate
protective clothing. When working under or around the vehicle support it securely with jack stands. Use only the proper tools. Exercise extreme caution when
working with flammable, corrosive, and hazardous liquids and materials. Some procedures require special equipment and skills. If you do not have the
appropriate training, expertise, and tools to perform any part of this conversion safely, this work should be done by a professional.
Legal and Emissions Information
This publication is intended to provide information about the 350/265 HP engine and related components. This manual also describes procedures and
modifications that may be useful during the installation of a 350/265 HP 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 Chevrolet are all registered trademarks of the General Motors Company.
350/265 HP Engine Long Block Specifications
ALL INFORMATION WITHIN ABOVE
Date
BORDER TO BE PRINTED EXACTLY
AS SHOWN ON 8.5 x 11 WHITE 16
POUND NON-BOND RECYCLABLE
PAPER. PRINT ON BOTH SIDES,
EXCLUDING TEMPLATES. TO BE
04OC17
UNITIZED IN ACCORDANCE WITH
17JN20
GMCCA SPECIFICATIONS.
350/265 HP Engine Long Block Specifications
I-Sheet Part Number 19420527
REV 17JN20
Revision
Auth
Previous Revisions are
Archived
Revision Rusty Sampsel
N/A
Revision Alin Dragoiu
N/A
PART No.
19240527
DR
Installation Instructions
Title
350/265 HP Engine Long Block Specifications
19240527
PART No.
SHEET
1 of 22
SHEET 1 of 22