Points/Stats Schedules







Competition
National Events
Regional/Division Events
Heritage Series
Member Track Directory
Division Offices
SRAC Advisor
Competition Number/License Applications & Forms
NHRA Approved ASO's
Insurance Claim Information
Tech
Automatic Horsepower Factoring System
AHFS Request
Engine Blueprint Specifications
Indexes and Records
NHRA Accepted Products
Rules
Stock Car Classification
Tech Support Contacts
Chassis Inspector
Contingency
Contingency Award Rules & Policies
Sponsor Listing & Contact Information
Contingency Sponsor Requirements
LODRS Div Contingency Sheet
Camping World Series Event Contingency Posting
Contingency Sponsor Approved Decals
W9 Form

NHRA Tech Department makes corrections to the Stock Car Classification Guide

Jan. 27, 2021

 

The NHRA Technical Department recently made changes to the Class Guide.

 

          Chev Big Block oval port added replacement heads 65-76

65      396/325

66      396/325       396/360       427/390

67      396/325       396/350       427/385       427/390       427/400

68      396/325       396/350       427/385       427/390       427/400

69      396/325       396/350       427/335       427/390       427/400

70      402/330       402/350       454/345       454/360       454/390

71      402/300       454/365

72      402/210       402/240       454/230       454/270

73      454/215       454/245

74      454/235       454/270

75      454/215      

76      454/225

 








RM