Forged PISTONS for PONTIAC V8 389 - 455 V8

 
DSS piston comparason chart

 

 

Forged PISTONS for PONTIAC V8 389 - 455 V8

GSX 389 Pontiac Note: These parts use common performance ring sets.

Available Bore Sizes (4.080 = .017) (4.100 = .037) ( 4.120 = .057 )

Add the bore size to the end of the part # IE. 6100CX-4100 for a 4.100 Bore Size.

RING GROOVE

1/16 1/16 3/16

Pontiac

CID.

Crank Stroke

Rod C to C

Pin Dia.

Crown Type

Pin

Hgt

Aprox. Comp. Ratio

Head Type

Pistons

Piston & Ring Kit

72cc

78cc

85cc

389

3.750

6.625

0.980

Flat Top -5cc

1.710

10.28

9.67

9.06

Post 1968

6100CX

PRK6100CX

389

3.750

6.625

0.980

Flat Top -5cc

1.710

10.28

9.67

9.06

Pre 1968

6102X

PRK6102X

389

3.750

6.625

0.980

Dish -14cc

1.710

9.49

8.98

8.46

Post 1968

6103CX

PRK6103CX

389

3.750

6.625

0.980

Dish -14cc

1.710

9.49

8.98

8.46

Pre 1968

6105X

PRK6105X

GSX 400/428 Pontiac Note: These parts use common performance ring sets.

Available Bore Sizes(4.120 = STD ) (4.125 = .005) (4.150 = .030) (4.160 = .040) (4.180 = .060) (4.190 = .070)

IE for a .030 over bore 400 (4.150) order a part # 6100X-4150.

RING GROOVE

1/16 1/16 3/16

Pontiac

CID.

Crank Stroke

RodC to C

Pin Dia.

Crown Type

Pin

Hgt

Aprox. Comp. Ratio

Head Type

Pistons

Piston & Ring Kit

72cc

78cc

85cc

400

3.750

6.625

0.980

Flat Top -5cc

1.710

10.56

9.94

9.31

Pont

6100X

PRK6100X

400

3.750

6.625

0.980

Dish -14cc

1.710

9.66

9.14

8.61

Pont

6103X

PRK6103X

428

4.000

6.625

0.980

Flat Top -5cc

1.585

11.20

10.54

9.86

Pont

6110X

PRK6110X

428

4.000

6.625

0.980

Dish -14cc

1.585

10.23

9.69

9.12

Pont

6113X

PRK6113X

449

4.210

6.625

0.980

Flat Top -5cc

1.480

11.74

11.04

10.33

Pont

6120X

PRK6120X

449

4.210

6.625

0.980

Dish -18cc

1.480

10.33

9.79

9.24

Pont

6123X

PRK6123X

453

4.250

6.800

0.990

Flat Top -5cc

1.285

11.84

11.13

10.41

Pont

6130X

PRK6130X

453

4.250

6.800

0.990

Dish -18cc

1.285

10.41

9.88

9.32

Pont

6133X

PRK6133X

466

4.375

6.800

0.990

Flat Top -5cc

1.222

12.16

11.43

10.69

Pont

6140X

PRK6140X

466

4.375

6.800

0.990

Dish -22cc

1.222

10.29

9.62

9.11

Pont

6143X

PRK6143X

480

4.500

6.800

0.990

Flat Top -5cc

1.160

12.48

11.73

10.97

Pont

6150X

PRK6150X

480

4.500

6.800

0.990

Dish -24cc

1.160

10.40

9.89

9.36

Pont

6153X

PRK6153X

GSX 455 Pontiac Note: These parts use common performance ring sets.

Available Bore Sizes (4.150 = STD) (4.180 = .030) (4.190 = .040)

IE for a .030 over bore 455 (4.180) order a part # 6120BX-4180.

RING GROOVE

1/16 1/16 3/16

Pontiac

CID.

Crank Stroke

Rod C to C

Pin Dia.

Crown Type

Pin

Hgt

Aprox. Comp. Ratio

Head Type

Piston & Ring Kit

72cc

80cc

87cc

455

4.210

6.625

0.980

Flat Top -5cc

1.480

11.87

10.94

10.25

Pont

6120BX

6120BX

455

4.210

6.625

0.980

Dish -18cc

1.480

10.44

9.74

9.20

Pont

6123BX

6123BX

460

4.250

6.800

0.990

Flat Top -5cc

1.285

11.97

11.04

10.34

Pont

6130BX

6130BX

460

4.250

6.800

0.990

Dish -18cc

1.285

10.53

9.82

9.28

Pont

6133BX

6133BX

487

4.500

6.800

0.990

Flat Top -5cc

1.160

12.62

11.86

11.09

Pont

6150BX

6150BX

487

4.500

6.800

0.990

Dish -24cc

1.160

10.51

10.00

9.46

Pont

6153BX

6153BX