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[Datsun 1200 encyclopedia]

Camshaft Comparison

Revision as of 04:47, 23 August 2009; view current revision
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Category: Camshaft

There are basically four factory camshaft grinds:

  • small bore grind
  • large bore grind
  • performance grind, used in GX, Twin-carb, and EFI engines
  • emission grind, used in 1981-1982 USA engines

However, these can be fitted to any engine. The emission grind cam was used in A12A, A14 and A15 engine -- all with same cam part number.

Contents

Duration

"Advertised Duration" means you should only compare these numbers with grinds from the same manufacturer. Other vendors may measure it differently.


Early vs. Late

For 1974, the A-series engine was re-designed.

19482.jpg 1-Gear cam (Early)

14560.jpg 2-Gear cam (Late)

11183.jpg 2-Gear cam (Late), no fuel pump eccentric



2980.jpg 9024.jpg


Specs

6195.jpg

18422.jpg

15607.jpg

15781.jpg

14441.jpg

921.jpg

1974-up

  • 13001-H9800 CAMSHAFT [Typical use: 1981-1982 USA]
    244/248 duration
    • USA B310 A14,A15 B310 0880-
    • USA B310 A12A 0880- B310
  • 13001-H5700 CAMSHAFT [Typical use: Performance engine]
    248/256 duration .331 lift
    • JPN B210 A12T, A14T
    • JPN B310 A14E, A15E
  • 13001-H5000 CAMSHAFT [Typical use: A12S]
    248/248 duration
    • JPN B120 A12S
    • JPN B210 A12S
    • JPN B310 A12S, A13S
    • USA B310 A12A 0879-0780
    • CAN B310 A12A
  • 13001-H6200 ASSY-CAMSHAFT [Typical use: A14/A15]
    248/256 duration
    • JPN B210 A14S
    • USA B210 A13, A14
    • USA B210 F10 A14
    • USA B310 A14,A15 -0780
    • JPN B310 A14S, A15S


ADVERTISED DURATION

248/248 duration (standard small bore)

  • 13001-H5000

248/256 duration (standard large bore)

  • 13001-H6200

256/256 duration (performance engines)

  • 13001-H5700 .331 lift

244/248 duration (Late USA emission)

  • 13001-H9800


1967-1973

  • 13001-H7000 ASSY-CAMSHAFT USA B110 A12 0772- 0 13001-H2300
  • 13001-H2300 CAMSHAFT B110 JPN A12 GX
  • 13001-H1000 CAMSHAFT B110 USA JPN A12
  • 13001-18001 CAMSHAFT B10 JPN A10 0470- replaces 13001-18000 & 13001-H0100
  • 13001-18000 CAMSHAFT JPN B10 A10
  • 13001-H0100 CAMSHAFT JPN B10 A10


ADVERTISED DURATION

248/248 duration

  • 13001-H1000 A12

256/256 duration .331 lift

  • 13001-H2300 A12 GX

Chart

Part Number@Ex. DurIn. DurIn. OpenIn. CloseEx. CloseEx. OpenLift (in)Reference
13001-18000 ?        
13001-H1000?248248145412560.335photo
13001-H2300?256256205618580.353A12GX
13001-H5000?24824814541256 photo
13001-H5700?256248145420560.331here
13001-H6200?256248145420560.324photo
13001-H9800?24824414501256 1981
99996-H1031?300     0.487Nismo
99996-H1032?310     0.487Nismo
13001-H57100.10280 386235650.37topic
13001-H57110.10      0.37Nismo
?0.10320     0.413Nismo
?0.10328     0.413Nismo