Camshaft Comparison

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There are basically five factory camshaft grinds, from A10 to performance grinds.

Overview

There are basically five factory camshaft grinds:

• 1000cc grind
• small bore grind
• large bore grind
• Performance grind for A12GX, A12T, A14T, EFI
• Hi-torque emission grind (1981-1982 USA)

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.

240/240 duration (A10 Datsun 1000)
248/248 duration (standard small bore)
248/256 duration (standard large bore)
256/256 duration (performance engines)
244/248 duration (Late USA emission)

Duration

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

Engine Size

Engine displacement doesn't matter. In certain years, all A12 A14 and A15 engines were fitted with the *same* camshaft.

For example:

1982 B310 USA
Part Number 13001-H9800 CAMSHAFT A12A, A14, A15 USA
IN: 244, EX: 248

However, in other years and markets different specs were used. For example:

1982 B310 CANADA:
A12A Part Number 13001-H5000 CAMSHAFT A12A CAN
 IN: 248, EX: 248
A15 Part Number 13001-H9800 CAMSHAFT A14 CAN
 IN: 244, EX: 248

See Camshaft Comparison

Early vs. Late

For 1974, the A-series engine was re-designed. Because the distributor moved from beside cylinder #1 to beside cylinder #3, a new gear was added to the cam. The oil pump eccentric was moved from #3 to #2 at the same time.

Top: July 1974-up camshaft

Bottom: 1967-1973 June camshaft

Competition Camshaft

Beware, some cams have no eccentric cam for the fuel pump. You will have to use an electric fuel pump with these cams.

Top: Tomei 80A competition cam

Bottom: Early cam

Nissan Competition Parts

CAMSHAFTS & RELATED COMPONENTS (A-SERIES)

PART NO. DESCRIPTION QTY REQ.

• 13001-H2300 GX CAMSHAFT (.331"/256

• 13001-H5700 A14E stock 256° 20/62/65/35/12/15 lift 8.4, clearance .35
• 13001-H5710 70° camshaft 280° 38/62/65/35/12/15 lift 9.4, clearance .25
  • recommended for rallies
  • limit RPM 7600, normal RPM 7200
• 13001-H5711 74° camshaft 296° 46/70/73/43/12/15 lift 9.4, clearance .25
  • recommended for gymkhanas
  • limit RPM 7800, normal RPM 7400
• 13001-H5712 80° camshaft 320° 58/82/85/55/12/15 lift 10.5, clearance .25
  • recommended for racing
  • limit RPM 8500, normal RPM 8000
• 13001-H5713 82° camshaft 328° 62/86/62/55/12/12 lift 10.5, clearance .25

Specs

A10: 240/240 12/48/10/50

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
240/240 duration (A10 Datsun 1000)
* 13001-H18001
248/248 duration
* 13001-H1000 A12
256/256 duration .331 lift
* 13001-H2300 A12 GX

Chart