Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on November 25, 1997.
As of Sunday, June 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
736561992-1997 Dodge Trucks , 3.9L V-6, 1.7:1Roller Rocker Arms

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-410-1
  • Executive Order 410-1 / D410-1
  • ARB # D-410-1
  • Executive Order No: D-410-1
  • C.A.R.B. No. D-410-1
  • Resolution D-410-1
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-410-1 PDF

D-410-1 Document:



                                                State of California
                                            AIR RESOURCES BOARD

                                          EXECUTIVE ORDER D—410—1
                                   Relating to Exemptions Under Section 27156
                                                of the Vehicle Code

                                       CROWER CAMS AND EQUIPMENT
                                            Roller Rocker Arms

 Pursuant to the authority vested in the Air Resources Board 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 Roller Rocker Arms manufactured by Crower
 Cams and Equipment of 3333 Main Street, Chula Vista, California 91911—5899, 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 for those applicable General Motors and Chrysler trucks as listed in Exhibit A
 of this Executive Order.

 The Roller Rocker Arms are manufacturered out of either stamped steel, stainless steel, or aluminum with a roller
 tip and are a direct replacement to the stock rocker arms. Only a maximum rocker ratio increase of 0.1 is
 allowed over the stock rocker arm, e.g. stock rocker arm 1.5 : 1, modified Roller Rocker 1.6 : 1.

 This Executive Order is valid provided that installation instructions for this kit will not recommend tuning the
 vehicles to specifications different from those of the vehicle manufacturer.

 Changes made to the design or operating conditions ofthe devices, as exempt by the Air Resources Board, which
_ adversely affect the performance of a vehicle‘s pollution control system shall invalidate this Executive Order.

 Marketing of this device using any identification other than that shown in this Executive Order or marketing of
 this device for an application other than those listed in this Executive Order shall be prohibited unless prior
 approval is obtained from the Air Resources Board.

 This Executive Order does not constitute any opinion as to the effect the use of the device may have on any
 warranty either expressed or implied by the vehicle‘s 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 CROWER CAMS AND EQUIPMENT‘S ROLLER ROCKER ARMS.

 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 days 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 will 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.

 Executed ét El Monte, California, thiséz day of Novegiber 1997.




                                           R. B. Summerfiel&/Chief
                                           Mobile Source Operations Division


                                                 Exhibit A


                                    Chrysler Products Applications :


M.Y.‘s        Vehicles                              Engines            Ratio      Part Number


1992 — 97     Dodge Trucks                          3.9L V—6           1.7 : 1      73656

1992 — 97     Dodge Trucks                          5.2L V—8           1.7 : 1      73656

1992 — 97     Dodge Trucks                          5.9L V—8           1.7 :1      73656

1994 — 97     Dodge Trucks                          8.0L V—10          1.7 : 1      73659



1993 — 97     Jeep Grand Cherokee                   5.2L V—8           1.7 :1      73656

1993 — 97     Jeep Grand Cherokee                   5.9L V—8           1.7 : 1     73656




                                      General Motors Applications :



Stainless Stee! Roller Rockers :

1975 — 97     Chevrolet                             200 — 229 V—6      1.6 : 1      73652

1975 — 97     Chevrolet                             200 — 229 V—6      1.65 : 1    73654

1975 — 97     Chevrolet w/ 3/8 Stud                 265 — 400 V—8      1.35 : 1     73635

1975 — 97     Chevrolet      «6                     265 — 400 V—8      1.6 : 1      73640

1975 — 97     Chevrolet      i6                     265 — 400 V—8      1.65 : 1     73670

1975 — 97     Chevrolet w/ 716 Stud                 265 — 400 V—8      1.6 : 1      73641

1975 — 97     Chevrolet      46                     265 — 400 V—8      1.65 : 1     73671

1975 — 97     Chevrolet                             366 — 454 V—8      1.55 : 1     73604

1975 — 97     Chevrolet                             366 — 454 V—8      1.6 : 1      73606

1975 — 97     Chevrolet                             366 — 454 V—8      1.75 :1      73607

1975 — 97     Chevrolet                             366 — 454 V—8      1.8 : 1      73608

1975 — 97     Pontiac, Oldsmobile     3/8 Stud      301 — 455 V—8      1.6 : 1      73609

1975 — 97     Pontiac, Oldsmobile 7/16 Stud         301 — 455 V-é      1.6 : 1      73612


                                           Exhibit A (cont‘d)


Self—aligning Stainless Steel Roller Rockers:

1975 — 97     Chevrolet                            265 — 400 V—8      1.5 : 1    73602

1975 — 97     Chevrolet                            265 — 400 V—8      1.6 : 1    73603

1975 — 97     Chevrolet (Narrow Trunion)           265 — 400 V—8      1.5 : 1    73660

1975 — 97     Chevrolet      &6       hi           265 — 400   v—8    1.6 : 1    73661



Long Arm / Backset Stainless Steel Roller Rockers :

1975 — 97     Chevrolet                            265 — 400 V—8      1.6 : 1    73674

1975 — 97     Chevrolet                            265 — 400 V—8      1.65 : 1   73672

1975 — 97     Chevrolet                            265 — 400 VB       1.7 : 1    73673

1975 — 97     Chevrolet                            265 — 400 V—8      1.75 : 1   73676

1975 — 97     Chevrolet                            265 — 400 V—8      1.8 : 1    73675



Aluminum Stud Mount Roller Rockers :

1975 — 97     Chevrolet                            200 — 229   v—6    1.6 : 1    72852

1975 — 97     Chevrolet                            200 — 229 V—6      1.65 : 1   72854

1975 — 97     Chevrolet w/ 7/16 Stud               265 — 400 V—8      1.35 : 1   72835

1975 — 97     Chevrolet w/ 3/8 Stud                265 — 400    v—8   1.6 : 1    72840

1975 — 97     Chevrolet      64                    265 — 400    v—8   1.65 : 1   72870

1975 — 97     Chevrolet w/ 7/16 Stud               265 — 400 V—8      1.6 : 1    72841

1975 — 97 |   Chevrolet      in                    265 — 400 V—8      1.65 : 1   72871

1975 — 97     Chevr;)let                           366 — 454 V—8      1.55 : 1   72804

1975 — 97     Chevrolet                            366 — 454    v—8   1.6 : 1    72806

1975 — 97     Chevrolet                            366 — 454 V—8      1.75 :1    72807

1975 — 97     Chevrolet                            366 — 454 V—8      1.8 : 1    72808



Stamped Steel Rocker Arms :

1975 — 97     Chevrolet                            265 — 400 V—8      1.6 : 1    73051



Document Created: 2005-09-01 12:45:55
Document Modified: 2005-09-01 12:45:55

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