L28 Bore & Stroke Combinations

This information was presented by Jim Wolf at a Z Club of San Diego Meeting, taken from material published copywrite material from Nissan Motors Co.

 

BORE AND STROKE COMBINATIONS FOR L28 ENGINES

HEAD #

VOL. C.C.

INT VALV.

EX VALV.

EXH. PORT

PROD. DATE

E31

42.4

42

33

square ex

10/69-7/71

E88

44.7

42

33

square ex

9/71-7/72

N33

47.8

42

33

square ex

8/72-7/73

N33/P50

47.8

42

35

square ex

8/73-8/74

N42

44.6

44

35

square ex

9/74-7/77

N47

44.6

44

35

round ex

8/77-3/78

P81

44.6

44

35

round ex

2/79-6/80

P79

53.6

44

35

round ex

7/80-

P90

53.6

44

35

square ex

12/80-7/82Turbo

P99

53.6

44

35

square ex

8/82-Turbo Hyd

 

HEAD GASKET MEASUREMENTS

H/GASKET

HEIGHT

DIA.

C.C.

PART #

L28 STD

1.25

88

7.60

11044-P7911

HKS METAL

1

91

6.50

11044-91MM1

HKS METAL

2

91

13.01

11044-91MM2

PISTON WEIGHTS AND MEASUREMENTS

PISTON

DIA MM.

PIN HEIGHT

DISH C.C.

PART #

KA24E STD.cut .5

89

33.5

0.00

12010-40F10

KA24E +1.00 cut .5

90

33.5

0.00

12010-40F73

Z24 STD. cut .5

89

33.5

13.00

12010-83W01

Z24 +1.00 cut .5

90

33.5

13.00

12010-83W03

Z22S STD.

87

35.0

9.33

12010-06W11

Z22S + 1.00

88

35.0

9.33

12010-06W13

 

PRACTICAL PISTON / ROD / CRANK COMBINATIONS

NO.

PISTON

ROD

CRANK

PIST/DECK +/-

CC VOL+/-

SIZE C.C.s

#1

KA24E STD.cut .5

L24

LD28

0.13

-0.80

3098

#2

KA24E +1.00 cut .5

L24

LD28

0.13

-0.83

3168

#3

Z24 STD. cut .5

L24

LD28

0.13

-0.80

3098

#4

Z24 +1.00 cut .5

L24

LD28

0.13

-0.83

3168

#5

Z22S STD.

L28

LD28

-1.02

6.06

2960

#6

Z22S +1.00

L28

LD28

-1.02

6.20

3028

#7

KA24E STD

L24

L28

-1.37

8.50

2949

#8

KA24E +1.00

L24

L28

-1.37

8.71

3015

 

CONNECTING ROD MEASUREMENTS

ROD

LENGTH

PART #

CRANK

STROKE

PART #

BLOCK

HEIGHT

L24

133.00

12100-N0102

L28

79

12201-P3000SV

L28

207.87

L28

130.35

12100-A8703

LD28

83

12201-V0790

  

 

COMPRESSION RATIO USING HKS 1.MM HEAD GASKET FOR ABOVE COMBINATIONS

HEAD

#1

#2

#3

#4

#5

#6

#7

#8

E31

11.73

11.98

9.45

9.65

8.67

8.83

9.56

9.72

E88

11.24

11.48

9.14

9.33

8.41

8.56

9.23

9.39

N33

10.65

10.87

8.76

8.94

8.08

8.23

8.83

8.97

P50

10.65

10.87

8.76

8.94

8.08

8.23

8.83

8.97

N42

11.26

11.50

9.16

9.34

8.42

8.57

9.25

9.40

N47

11.26

11.50

9.16

9.34

8.42

8.57

9.25

9.40

P81

11.26

11.50

9.16

9.34

8.42

8.57

9.25

9.40

P79

9.71

9.91

8.14

8.31

7.53

7.67

8.16

8.30

P90

9.71

9.91

8.14

8.31

7.53

7.67

8.16

8.30

P99

9.71

9.91

8.14

8.31

7.53

7.67

8.16

8.30