Tech Pistons and push rods

Tech Pistons

Gandini (GPM)pistons
Compression height 35mm
Overall length 65.50mm
NORTON ES 2 - 500 T
Eng. 490 cc 1 cyl.
Code:P7915-050 Ø nom.:79.00mm +0.50

Engine Valve Push Rods

Norton

Model

Year

Type

Bare
inches

Assembled
inches

7, 88

 

Inlet

7.343

7.928

7, 88

 

Exhaust

6.5

7.085

77, 99, 65/99, Atlas before 125871

 

Inlet

7 629

821

77, 99, 65/99, Atlas before 125871

 

Exhaust

6.781

7.366

All 650, 750, 828cc engines after 125871

 

Inlet

7.525

8.11

All 650, 750, 828cc engines after 125871

 

Exhaust

6.681

7.266

250 Jubilee

 

Inlet & Exhaust

2.5

3.04

350 Navigator

 

Inlet & Exhaust

2.859

3.399

ES2

1953 / 54

Inlet & Exhaust

8.687

9.282

19

1955 to 58

Inlet & Exhaust

9.593

10.188

ES2

1955 to 62

Inlet & Exhaust

8.04

9.23

50

1955 to 62

Inlet & Exhaust

8.343

8.938

 

Source: Norton Owners Club Handbook 1996; Norton Owners Club