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Pacific Division News



NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Section 4, Jr Drag Racing League, Engine, Page 6 – Engine requirements clarified Section 4, Jr Drag Racing
Apr 4, 20251 min read


NHRA Tech Department makes corrections/updates to the Stock Car Classification Guide
April 1, 2025 The NHRA Technical Department recently made changes to the Class Guide. Ford 66-67 Fairlane 427-425 corrected footnotes for hoods 73184
Apr 1, 20251 min read


NHRA Tech Department makes additions/corrections to the engine blueprint specifications
April 1, 2025 The NHRA Technical Department recently made changes to the blueprint specifications. Chev 19-24 376 385 corrected casting number to PN 73183
Apr 1, 20251 min read


NHRA Tech Department makes additions/corrections to the engine blueprint specifications
March 19, 2025 The NHRA Technical Department recently made changes to the blueprint specifications. Ford 1969 429 370 added optional head gasket. Ford 1970 429 375 added optional head gasket. 73181
Mar 19, 20251 min read


NHRA Tech Department makes additions/corrections to the engine blueprint specifications
March 14, 2025 The NHRA Technical Department recently made changes to the blueprint specifications. Chry 2021 added alternate supercharger case for Factory Stock Showdown, Factory X only. 73179
Mar 14, 20251 min read


NHRA Tech Department makes additions/corrections to the engine blueprint specifications
March 11, 2025 The NHRA Technical Department recently made changes to the blueprint specifications. Chry 09-15, 19, 21 added alternate cylinder head casting 73176
Mar 11, 20251 min read


NHRA Technical Department Makes Parity Adjustment to Top Alcohol Funny Car
Top Alcohol Funny Cars running nitromethane, 100% nitromethane permitted at events contested at 3,500 feet of altitude or more. Maximum nitromethane content 95% for cars running 3.20 and numerically higher rear gear ratios, 91.5% for cars running 3.19 and numerically lower rear gear ratio at all other events. 73178
Mar 11, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Section 19, Top Fuel, Body, Mud Flaps optional 73177
Mar 11, 20251 min read


NHRA Updates the Digital Version of the 2025 NHRA Rulebook
NHRA has updated the digital version of the 2025 NHRA Rulebook to reflect all of the rule amendments made through 03/03/2025. The 2025 NHRA Rulebook can be found under the Rules section of NHRARacer.com 73175
Mar 4, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Section 15, Top Alcohol Funny Car, Class Weights. Nitro percentage 73174
Mar 3, 20251 min read


NHRA Tech Department makes corrections/updates to the Stock Car Classification Guide
March 4, 2025 The NHRA Technical Department recently made changes to the Class Guide. AMC 343-403 added Edelbrock replacement cylinder head 60119 67-73 Super Stock only. 73173
Mar 3, 20251 min read


NHRA Tech Department makes additions/corrections to the engine blueprint specifications
March 4, 2025 The NHRA Technical Department recently made changes to the blueprint specifications. AMC 70-79 updated carburetor sizes AMC 75-77 corrected cylinder head casting 73172
Mar 3, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Section 2, Race Procedures, Lane Choice – Comp Lane Choice updated 73169
Feb 28, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. · SECTION 2: RACE PROCEDURES, REPLACEMENT DRIVER, (PAGE 4) · SECTION 2: RACE PROCEDURES, REPLA
Feb 25, 20251 min read


Horsepower adjustments following the Lucas Oil NHRA Division 2 events in Orlando, FL
2/24/2022 As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.30-second under policy at the NHRA Division 2 event, the following change has been made. The horsepower rating for 1969 Chevrolet Camaro, entries with the 350 cubic inch engine and a factory rating of 255 currently rated at 280, has been increased by fifteen horsepower, to 295 horsepower: for Stock Eliminator automatic. NHRA's 2025 Automatic Horsepower Factoring System outlines that a
Feb 24, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Section 2, Race Procedures, Lane Choice – Lane Choice procedures updated Section 18, Funny Car, Drivetrain
Feb 19, 20251 min read


NHRA Tech Department makes corrections/updates to the Stock Car Classification Guide
Feb. 12, 2025 The NHRA Technical Department recently made changes to the Class Guide. Ford 428 335/397 change to 428 335/388 68-70 Mustang – Cougar – Shelby Auto Trans Rep Heads 73163
Feb 12, 20251 min read


NHRA Updates the Digital Version of the 2025 NHRA Rulebook
NHRA has updated the digital version of the 2025 NHRA Rulebook to reflect all of the rule amendments made through 01/09/2025. The 2025 NHRA Rulebook can be found under the Rules section of NHRARacer.com 73159
Feb 6, 20251 min read


NHRA Releases 2025 Rulebook Amendment Updates
The NHRA Technical Department has released additional 2025 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2025 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments document for complete details. Division 4 office address updated JEGS Allstars event location updated Summit National Championship event
Feb 4, 20251 min read


NHRA Tech Department makes corrections/updates to the Stock Car Classification Guide
Feb. 3, 2025 The NHRA Technical Department recently made changes to the Class Guide. Chev 307 200/195 change to 307 200/165 1968 Full size, Chevelle, Chevy II Stock Chev 307 200/195 change to 307 200/160 1969 Camaro, Chevelle, Chevy II Stock Chev 307 200/195 change to 307 200/170 1970 Camaro, Chevelle, Chevy II Stock Chev 307 200/195-168 change to 307 200/165 71-72 Camaro, Chevelle Stock GM 325 303/303 change to 325 303/280 Impala, Monte Carlo, Grand Prix stoc
Feb 4, 20251 min read
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