gm guide

 

 

 

 

 

 

 

 

 

Small Block V8 Production

 

 

History and Design Features

 

 

Engine and

 

 

Main

Rod

Main Cap

 

 

model year

Bore

Stroke

Journal

Journal

2 or 4

 

 

262 '75- '76

3.671

3.10

2.45

2.10

2 - bolt

 

 

265 '55- '56

3.75

3.00

2.30

2.00

2 - bolt

 

 

267 '79'- '81

3.50

3.48

2.45

2.10

2 - bolt

 

 

283 '57- '67

3.875

3.00

2.30

2.00

2 - bolt

 

 

302 '67

4.00

3.00

2.30

2.00

2 - bolt

 

 

302 '68 -'69

4.00

3.00

2.45

2.10

4 - Bolt

 

 

305 '76- '91

3.736

3.48

2.45

2.10

2 - bolt

 

 

307 '68- '73

3.875

3.25

2.45

2.10

2 - bolt

 

 

327 '62- '67

4.00

3.25

2.30

2.10

2 - bolt

 

 

327 '68- '69

4.00

3.25

2.45

2.10

2 - bolt

 

 

350 '67- '91

4.00

3.48

2.45

2.10

2-4 bolt

 

 

400 '70- '72

4.125

3.75

2.65

2.10

4 - Bolt

 

 

400 '73- '80

4.125

3.75

2.65

2.10

2 - bolt

 

 

*Chart Courtesy of Chevrolet