Forged PISTONS for AMC JEEP 4.0-4.7 6 CYLINDER and AMC 360-390-401 V8

 
DSS piston comparason chart

 

 

JEEP 6 CYLINDER

GSX AMC/JEEP 4.0/4.7 6 cylinder

Available Bore Sizes (STD=3.875) (.030=3.905) (.040=3.915) (.060=3.935) Add the bore size to the end of the part # IE. 6650X-3.905 for a 3.905 bore size.

RING GROOVE

1.5-1.5-4MM

AMC

CID.

Crank Stroke

Rod Length

Wrist

Pin Dia.

Piston

Crown Type

Pin

Hgt

Aprox. Comp. Ratio

Part

Number

Piston & Ring Kit

52cc

55cc

58cc

242

3.500

6.125

0.931

Flat Top -5cc

1.592

11.20

10.77

10.36

6650X

PRK6650X

242

3.500

6.125

0.931

Dish -21cc

1.592

9.20

8.91

8.64

6653X

PRK6653X

280

3.895

5.875

0.931

Flat Top -5cc

1.581

12.54

12.14

11.67

6660X

PRK6660X

280

3.895

5.875

0.931

Dish -21cc

1.581

10.20

9.97

9.66

6663X

PRK6663X

280

3.895

5.875

0.931

Dish -27cc

1.581

9.56

9.38

9.12

6665X

PRK6665X

280

3.895

6.125

0.931

Dish -10cc

1.350

11.73

11.38

10.98

6670X

PRK6670X

280

3.895

6.125

0.931

Dish -21cc

1.350

10.20

9.97

9.66

6673X

PRK6673X

280

3.895

6.125

0.931

Dish -27cc

1.350

9.56

9.38

9.12

6675X

PRK6675X

/p

AMC V8 360-390-401

/p

GSX AMC 360 - 390 - 401

360 Available Bore Sizes ( STD=4.080) ( .030=4.110) (.040=4.120) (.060=4.140) 390/401 Available Bore Sizes ( STD=4.165) (0.020=4.185) ( .030=4.195) Add the bore size to the end of the part # IE. 6600X-4080 for a 360 STD bore size. IE. 6620-4195 for a 401 .030 oversize.

RING GROOVE

1/16-1/16-3/16

AMC

CID.

Crank Stroke

Rod Length

Wrist

Pin Dia.

Piston

Crown Type

Pin

Hgt

Aprox. Comp. Ratio

Pistons

Piston & Ring Kit

50cc

54cc

58cc

360

3.44

5.875

0.930

Flat Top -5cc

1.590

12.18

11.54

10.97

6600X

PRK6600X

360

3.44

5.875

0.930

Dish -21cc

1.590

9.99

9.58

9.19

6605X

PRK6605X

390

3.574

5.858

1.00

Flat Top -5cc

1.550

13.03

12.34

11.73

6610X

PRK6610X

390

3.574

5.858

1.00

Dish -25cc

1.550

10.24

9.83

9.46

6615X

PRK6615X

390

3.574

5.858

1.00

Flat Top -5cc

1.590

13.03

12.34

11.73

6630X

PRK6630X

390

3.574

5.858

1.00

Dish -25cc

1.590

10.24

9.83

9.46

6635X

PRK6635X

401

3.680

5.858

1.00

Flat Top -5cc

1.500

13.38

12.68

12.05

6620X

PRK6620X

401

3.680

5.858

1.00

Dish -28cc

1.500

10.2

9.8

9.44

6625X

PRK6625X