Engine Options: Information and Resources Guide

Overview:

All the info you ever wanted to know about the popular engine swaps for the 240sx.

*NOTE: When performing any swap, it is a good idea to replace any maintenance items on the car and motor before installation. This includes but is not limited to:

- water pump
- timing chains or belt
- fuel injectors
- fuel pump
- spark plugs and wires
- dist cap and rotor/coil packs
- all filters
- all fluids
- belts
- clutch and flywheel
- gaskets and seals


S13, S14 KA24DE (DOHC)


General:

- From 1991-1998 Nissan 240sx
- 2.4 liter/145 c.i. displacement, 89.0mm (3.50393 in.) bore x 96.0mm (3.77592 in.) stroke
- Cast iron block, aluminum head
- DOHC 16 valve solid lifter configuration
- CR: 91-94 - 9.2:1, 95-98 - 9.5:1
- Weight: ~ 465-500 lbs not including transmission

Peak HP - 155 @ 5600rpm
Peak Tq. - 160 ft/lb @ 4400 rpm

Availability/Cost: High/Low
Parts Availability/Cost: High/Low
Difficulty of installation: Low

Parts Required:

- Motorset (complete, virtually nothing from the SOHC motor is compatible)
- Transmission (not required for S13 DOHC swap, CAS location on S14 motor may require S14 transmission)
- Power steering relocation lines
- Wiring harness and ECU




CA18DE-T


General:

- From 1987-1988 S12 Silvia GT-X, 1989-1990 S13 Silvia/180sx, 1989-1993 S13 200sx (Euro-spec).
- 1809cc displacement, 83mm bore x 83.6mm stroke
- Cast iron block, aluminum head
- DOHC 16 valve solid lifter configuration
- CR 8.5:1
- Weight: ~ 500 lbs.

Peak HP - 173 @ 6400 rpm
Peak Tq. - 166 ft/lbs @ 4000 rpm

Availability/Cost: Mid/Low-Mid
Parts availability/Cost: Low/Mid
Difficulty of installation: Low-Med

Parts Required:

- Motorset
- Transmission
- Wiring harness and ECU
- Engine and transmission mounts
- Driveshaft




SR20DE-T (Redtop, Blacktop S13)




General:

- From 1991-1993 S13 Silvia, 1991-1998 S13 180sx
- 1998cc displacement, 86mm bore x 86mm stroke
- Aluminum block and head
- DOHC 16 valve hydraulic lifter configuration
- CR 8.5:1
- Weight: ~ 490 lbs.

Peak HP - 203 @ 6400 rpm
Peak Tq. - 202 ft/lbs @ 4000 rpm

Availability/Cost: High/Mid
Parts Availability/Cost: High/Mid
Difficulty of installation: Low-Med

Parts Required:

- Motorset
- Transmission or bellhousing and KA transmission
- Wiring harness (hybrid KA/SR - splicing required) and ECU
- Heater hoses for re-route




SR20DE-T S14 "Notchtop"


General:

- From 1994-1998 S14 Silvia (VTC variable valve timing)
- 1998cc displacement, 86mm bore x 86mm stroke
- Aluminum block and head
- DOHC 16 valve hydraulic lifter configuration
- CR 8.5:1
- Weight: ~ 490 lbs.

Peak HP - 217 @ 6000 rpm
Peak Tq. - 202 ft/lbs @ 4800 rpm

Availability/Cost: Mid/Mid-High
Parts Availability/Cost: High/Mid
Difficulty of installation: Med

Parts Required:

- Motorset
- Transmission or bellhousing and KA transmission
- Wiring harness (hybrid KA/SR - splicing required) and ECU
- Heater hoses for re-route



SR20DE-T S15


General:

- From 1999-2001 S15 Silvia
- 1998cc displacement, 86mm bore x 86mm stroke
- Aluminum block and head
- DOHC16 valve hydraulic lifter configuration
- CR 8.5:1
- Weight: ~ 490 lbs.

Peak HP - 247 @ 6400 rpm
Peak Tq. - 202 ft/lbs @ 4800 rpm

Availability/Cost: Low/Mid-High
Parts Availability/Cost: High/Mid
Difficulty of installation: Med-High

Parts Required:

- Motorset
- Transmission (5- or 6- speed available)
- Wiring harness (hybrid KA/SR - splicing required) and ECU
- Driveshaft (if using 6-speed transmission)
- Heater hoses for re-route



RB20DE-T and RB25DE-T


General:

- From HR31, R32, R33 and R34 Skyline, C33 Laurel, A31 Cefiro, and Stagea
- 1998/2498cc displacement, 78mm bore x 69.7mm stroke/86mm bore x 71.7mm stroke
- Cast iron block and aluminum head
- DOHC 24 valve solid lifter configuration
- CR 8.5:1
- Weight: ~ 670-800 lbs

Peak HP - 210 @ 6400 rpm/245 @ 5600rpm
Peak Tq. - ???

Availability/Cost: Mid/Mid-High
Parts Availability/Cost: Low-Mid/Mid-High
Difficulty of install: Med-High

Parts Required:

- Motorset
- Transmission or bellhousing and KA transmission
- Wiring harness (hybrid) and ECU
- Engine and transmission mounts (custom)
- Driveshaft (custom)




RB26DE-TT


General:

- From R32, R33, R34 Skyline and Autech-tuned Stagea 260RS
- 2568cc displacement, 86mm bore x 73.7mm stroke
- Cast iron block and aluminum head
- DOHC 24 valve solid lifter configuration
- CR: 8.5:1
- Weight: 750-800lbs (w/o awd transmission)

Peak HP - 276 @ 6800 rpm (actually closer to 320-330hp)
Peak Tq. - 260 ft/lbs @ 4600 rpm

Availability/Cost: Low/High
Parts Availability/Cost: Low/High
Difficulty of installation: High

Parts Required:

- Motorset
- Transmission (RB25 transmission can be used with minor modification; extensive modification required for AWD transmission)
- Wiring harness (hybrid) and ECU
- Engine and Transmission mounts (custom)
- Driveshaft (custom)




VG30DE/VG30DE-TT

General:

- From 1990-1996 300zx (USDM), 1989-2000 Fairlady Z (JDM)
- 2960cc displacement, 87mm bore x 83mm stroke
- Cast iron block and aluminum head
- DOHC 24 valve solid lifter configuration
- CR: 8.5:1
- Weight:

Peak HP - 227 @ 6400 rpm / 300 @ 6400 rpm
Peak Tq. - 198 ft/lbs @ 4800 rpm / 283 @ 3600 rpm

Availability/Cost: Mid-Low/Mid
Parts Availability/Cost: High/Mid-High
Difficulty of installation: Med-High

Parts Required:

- Motorset
- Transmission
- Wiring harness (hybrid) and ECU
- Driveshaft
- Engine and transmission mounts



VQ35DE, VQ35HR

General:

- From 2002 - current 350z and 2003 - current G35
- 3498cc displacement, 95.5mm bore x 81.4mm stroke
- Aluminum block and head
- DOHC 24 valve configuration
- CR: 10.3:1
- Weight:

Peak HP - 240-301@ 6,200 rpm
Peak Tq. - 246-287 ft. lbs. @ 4,800 rpm

Availability/Cost: Low-Mid, High
Parts Availability/Cost: Mid-High, Mid-High
Difficulty of Installation: Med-High

Parts Required:

- Motorset
- Transmission
- Harness and ECU
- Mounts (custom)