Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on January 25, 1996.
As of Wednesday, July 17th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModification
1988-1995 trucks originally equipped with a GM 454 CID. (7.4L) gasoline engine.Cylinder bored to increase displacement from 7.4L to 8.2L and existing piston replaced with larger piston, ported and polished cylinder heads, and an increase in lift and duration on the camshaft. The stock mechanical fuel pump is removed and replaced by an electronic fuel pump.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-126-3
  • Executive Order 126-3 / D126-3
  • ARB # D-126-3
  • Executive Order No: D-126-3
  • C.A.R.B. No. D-126-3
  • Resolution D-126-3
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-126-3 PDF

D-126-3 Document:



                                                    {Page 1 of 2)

                              State of California
                              AIR RESOURCES BOARD

                          EXECUTIVE ORDER D—126—3
                 Relating to Exemptions Under Section 27156
                            of the Vehicle Code

                        GM SERVICE PARTS OPERATIONS
                      GM PERFORMANCE PARTS 8.2L ENGINE
Pursuant to the éuthority vested in the Air Resources Board (ARB) by Section
27156 of the Vehicle Code; and

Pursuant to the authority vested in the undersigned by Sections 39515 and
39516 of the Health and Safety Code and Executive Order G—45—9;

IT IS ORDERED AND RESOLVED:   That the installation of the GM Performance
Parts 8.2L Engine, P/N 12360893, manufactured by GM Service Parts Operations
of 6060 West Bristol Road, Flint, Michigan 48554, has been found not to
reduce the effectiveness of the applicable vehicle pollution control system
and, therefore, is exempt from the prohibitions of Section 27156 of the
Vehicle Code on 1988—95 trucks originally equipped with a General Motors 454
cid. (7.4L) gasoline engine.

This Executive Order is valid provided that installation instructions do not
recommended tuning the vehicle to specifications different than those of the
vehicle manufacturer.            j     j

GM Performance Parts 8.2L (8.2L) Engine is a new 7.4L long block that is
reworked to increase the displacement of the original engine from a 454 cid.
(7.4L) to a 8.2L (8.2L). Modifications made to the original 7.4L engine
design include a larger cylinder bore, larger pistons, ported and polished
cylinder heads, and an increase in lift and duration on the camshaft. The
stock mechanical fuel pump is removed and replaced by an electronic fuel
pump .
Changes made to the design or operating conditions of the GM Performance
Parts 8.2L Engine, as exempt by the ARB, which adversely affect the
performance of a vehicle‘s poliution control system shall invalidate this
Executive Order.

Marketing of this GM Performance Parts 8.2L Engine using any identification
other than that shown in this Executive Order or marketing of the GM
Performance Parts 8.2L Engine for an application other than those listed in
;his Efiecxégve Order shall be prohibited unless prior approval is obtained
 rom the    .                     '

This Executive Order does not constitute any opinion as to the effect that
the use of this GM Performance Parts 8.2L Engine may have on any warranty
either expressed or implied by the vehicle manufacturer.

THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF
CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
BENEFITS OF GM PERFORMANCE PARTS 8.2L .ENGINE.                       ‘


 GM Service Parts Operations                      EXECUTIVE ORDER D—126—3
                                                  (Page 2 of 2)



 No claim of any kind, such as "Approved by the Air Resources Board" may be
 made with respect to the action taken herein in any advertising or other
 oral or written communication.

 Violation of any of the above conditions shall be grounds for revocation of
 this order. The order may be revoked only after ten day written notice of
 intention to revoke the order, in which period the holder of the order may
 request in writing a hearing to contest the proposed revocation.     If a
 hearing is requested, it shall be held within ten days of receipt of the
 request and the order may not be revoked until a determination after hearing
 that grounds for revocation exist.




                                          bntelhanit
\Executed at El Monte, California, this   )&Sflaay of January 1996.




                                     fiqu. B. Summerfield
                                     ~ Assistant Division Chief
                                       Mobile Source Division


                           State of California
                           AIR RESOURCES BOARD




                 EVALUATION OF GM SERVICE PARTS OPERATIONS
  GM PERFORMANCE PARTS 8.2L ENGINE FOR EXEMPTION FROM THE PROHIBITIONS OF
VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




                               January 1996


                            State of California
                            AIR RESOURCES BOARD




                 EVALUATION OF GM SERVICE PARTS OPERATIONS
  GM PERFORMANCE _PARTS 8.2L ENGINE FOR EXEMPTION FROM THE PROHIBITIONS OF
VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                        CALIFORNIA CODE OF REGULATIONS




                                     by
                           Mobile Source Division
                            9528 Telstar Avenue
                          El Monte, CA 91731—2990




(This report has been reviewed by the staff of the California Air Resources
Board and approved for publication. Approval does not signify that the
contents necessarily reflect the views and policies of the Air Resources
Board, nor does mention of trade names or commercial products constitute
endorsement or recommendation for use.)


          GM Service Parts Operations of 6060 West Bristol Road, Filint, Michigan
48554, has applied for an exemption from the prohibitions in Section 27156 of

the California Vehicle Code (VC) for their GM Performance Parts 8.2L Engine.

The GM Performance Parts 8.2L Engine is designed for installation on i988-95
trucks originally equipped with a General Motors 454 cid. (7.4L) gasoline

engine.     GM Service Parts Operations submitted a completed application and

other required information.

          Based on results of emissions testing, the staff concludes that GM
Service Parts Operations‘ GM Performance Parts 8.2L Engine will not adversely

affect the exhaust emissions on those applicable vehicles for which an

exemption is requested.

          The staff recommends that GM Service Parts Operations be granted an

exemption as requested and that Executive Order D—126—3 be issued.


                                     TABLE OF CONTENTS


                                                           Page Number



SUMMARY                      j                                   i
CONTENTS                                                        i1
I.        INTRODUCTION                                           1
II.       CONCLUSION                                             1
III.      RECOMMENDATION         .                               1
IV.       GM PERFORMANCE PARTS 8.2L ENGINE DESCRIPTION           1
V.        DISCUSSION OF GM PERFORMANCE PARTS 8.2L ENGINE         2




                                           11


                      EVALUATION OF GM SERVICE PARTS OPERATIONS
       GM PERFORMANCE PARTS 8.2L ENGINE FOR EXEMPTION FROM THE PROHIBITIONS OF
     VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                            CALIFORNIA CODE OF REGULATIONS

I.        INTRODUCTION
          GM Service Parts Operations of 6060 West Bristol Road, Flint, Michigan

48554, has applied for an exemption from the prohibitions in Section 27156 of

the California Vehicle Code {VC) for their GM Performance Parts 8.2L Engine.

The GM Performance Parts 8.2L Engine is designed for installation 1988—95

trucks originally equipped with a General Motors 454 cid. (7.4L) gasoline

engine.     GM Service Parts Operations submitted a completed application and

other required information.

II.       CONCLUSIONS
          Based on results of emissions testing, the staff concludes that GM

Service Parts Operation‘s GM Performance Parts 8.2L Engine will not adversely
affect the exhaust emissions on those applicable vehic1es for which an

exemption is requested.
III.      RECOMMENDATION
          The staff recommends that GM Service Parts Operations be granted an

exemption for their GM Performance Parts 8.2L Engine for installation on 1988—

95 trucks originally equipped with a General Motors 454 cid. (7.4L) gasoline
engine.     The staff also recommends that Executive Order D—126—3 be issued.
IV.       GM PERFORMANCE PARTS 8.2L ENGINE DESCRIPTION
          GM Service Parts Operations‘ GM Performance Parts 8.2L Engine has been
specifically designed for installation on 1988—95 trucks originally equipped
with a General Motors 454 cid. {(7.4L) gasoline engine. The modified engine

operates in conjunction with tfie original equipment manufacturer‘s (OEM)

computer controlled fuel injection system and emission control system already

certified with the stock engine.
                                         —1—


       GM Performance Parts 8.2L (8.2L) Engine is a new 454 cid. (7.4L) long

block that is reworked to increase the displacement of the original engine from

a 454 cid. to a 8.2L    Modifications made to the original 7.4L engine design

include a larger cylinder bore, larger pistons, ported and polished cylinder

heads, and an increase in lift and duration on the camshaft.     The stock

mechanical fuel pump is removed and replaced by an electronic fuel pump.
       The new camshaft, when compared to OEM, increases the lTift by 6 percent

on the intake and exhaust lobes.     Valve duration is lengthened by 8 percent on

the intake lobe and 11 percent on the exhaust Tobe.      The cylinder heads are
machined at both the exhaust and intake ports to allow for greater air flow.

The new engine uses all of the vehicle‘s original air intake and fuel delivery

equipment with no modification made to either the ignition system or the

factory PROM chip.

v.     DISCUSSION OF GM PERFORMANCE PARTS 8.2L ENGINE
       GM Service Parts Operations has requested that the GM Performance Parts

8.2L Engine be exempted for 1988—95 trucks originally equipped with a General

Motors 454 cid. (7.4L) gasoline engine.     A 1993 7.4L Suburban was used as the

test vehicle.     GM Service Parts Operations performed comparative emissions

testing at Automotive Testing Laboratories, Inc. in New Carlisle, Indiana.        The

horsepower and inertia settings for the vehicle were at 7000 lbs. and 18.6, the
results of the exhaust emissions tests are shown below.



                                CVS—75 TEST RESULTS

                                   NMHC     CO        NOx
       Baseline                     0.57    8.97      3.73
       Modified                     0 .60    5.73     3.38
       Difference                  +0.03    —3.24     —0.35


Comparative emissions testing demonstrated that the installation of the GM

Performance Parts 8.2L Engine did not significantly increase taiipipe

emissions, and is within the 10% or 0.1 gm/mi increase on NMHC and NOx, and 15%
or 1.0 gm/mi on CO.   The Air Resources Board did not conduct confirmatory

testing to validate the emission test results submitted by GM Service Parts

Operations.

       GM Service Parts Operations has submitted all the required information

and has fulfilled the requirements for an exemption.   Test results show that

the GM Performance Parts 8.2L Engine meets the requirements for an exemption.



Document Created: 2005-09-01 12:41:07
Document Modified: 2005-09-01 12:41:07

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