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Car Classifications

AHCA Classes and Designators

Classes – Both male and female drivers
Class Description
1 948 Sprite – Stock
2 1098-1275 – Stock
3 948 Sprite – Prepared
4 1098-1275 – Prepared
5 BN1, BN2, 100M, BN4 early 4 port engine – Stock
6 BN4 late, BN6, BN7, BT7 MKI – Stock
7 BT7 & BN7 MKII, BJ7, BJ8 – Stock
8 BN1, BN2, BN4 – Prepared
9 BN6, BN7,  BT7 MKI – Prepared
10 BT7 & BN7 MKII, BJ7, BJ8 – Prepared
11 Modified – Healey components 4 & 6 cylinder classes
12 Nasty Boys – Healeys with non-Austin engines
13 Jensen Healey – Stock
14 Jensen Healey – Prepared
15 Premier Output Healeys
AHCA Points Designator
Total Points  
0 to 5 Stock
6 to 12 Prepared
13 to 20 Modified
21 + Premier Output Healeys
Point Assignment for Class Designation
Description Points
1. Major Component Conversion & Swaps  
  a. Non-Healey Transmission 4
  b. Limited Slip Differential 2
  c. Engine Modifications
(Headers, Camshaft {more than
fast road cam} Pistons (over +30 bore)
Flywheel, Roller Rockers, etc.           
2 each
Carbs – Changes to other than stock carbs       2 / carb
Aluminum after market Head 4
2. Wheels and Tires  
  a. Wheels Wider than  
    i. Big Healey 5 ½ inch 2
    ii. Sprite 5 inch 2
    iii. Jensen Healey  5 ½ 2
  b. Tire Treadware Rating Less than 160 5

Components affecting Safety or common upgrades not increasing performance significantly will be free of a points penalty. Some of these are:

  • Disk Brake Conversion
  • Sway Bars
  • Suspension Bushings
  • Tube Shocks
  • Electronic Ignition (not programmable multi spark ignition) etc.