Brian Crower

Nissan KA24DE

The 2.4 L (2389 cc) KA24DE was used in many Nissan cars and trucks. Most KA24DEs bound for the US were built in Aguascalientes, Mexico, with the exception of the 240SX, which was manufactured in Fukuoka, Japan. The Nissan 240SX was a car introduced to the North American market by Nissan in 1989 and sold there until 1998. It replaced the 200SX (RWD) in 1989. The 240SX was equipped with a 2.4-litre inline 4 engine (KA24E from 1989-1990 and KA24DE from 1991-1998). Two distinct generations of the 240SX, the S13 (1989-1994) and the S14 (1995-1998), were produced from the Nissan S platform. The 240SX is closely related to other S vehicles: the Japanese-market Silvia and 180SX and the European/Australian-market 200SX. Many enthusiasts are turbocharging, creating the KA24DE(T) engine code.

Stage	Description	Cam #	Adv. Dur.	Dur @ .050	Lift (in)	Lift (mm)	Kit #
	Street/Strip Specification Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. V2 Specification.	BC0211 114°	264°/264°	218°/218°	.375"/.375"	9.52/9.52	BC0210
	Race Specification Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0210. V3 Specification. May require mild cylinder head clearancing	BC0212 114°	272°/272°	226°/226°	.401"/.401"	10.19/10.19	BC0210
	USDM KA24DE (240SX)	Stock	256°/256°	203°/207°	.344"/.357"	8.73/9.06

Bucket Diameter: 1.218"

VALVE SPRING/RETAINER KIT
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers and spring seats are CNC machined from 6AL4V titanium to exacting tolerances.

Kit #	Spring #	Retainer #	Seat #	Description
BC0210	BC1010	BC2210	BC2921	Dual spring, titanium retainer/seat

Spring Pressure:
BC1010 Seat: 1.400" @ 73 lbs / Open: 1.000" @ 200 lbs / Coil Bind: 0.940" (no machine work required)
Maximum lift on stock valve springs is .380".

STAINLESS STEEL VALVES
BC valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Oversize head diameter only.

Part #	Description #
BC3210	37.10mm Intake (+.5mm head diameter)
BC3211	31.80mm Exhaust (+.5mm head diameter)

NISSAN KA24DE 2.60L STROKER KIT

• BC 4340 billet steel crankshaft (102mm stroke). Fully counterweighted.
• BC 4340 steel Pro Series billet rods w/ARP 220,000 psi fasteners.
• CP aluminum forged pistons (any bore size, any compression ratio).
• 5100 Series carbon steel alloy wrist pins. 9310 pin upgrade available.
• Ductile iron plasma top rings, tapered second ring, low tension oil rings.
• ACL Race Series Bearings sold seperately.
• Fully system balanced and ready to install.

Kit #	Crank #	Rod #	Piston #	Desc.
BC0218	BC5219	BC6218	BC7219	102mm stroke, BC625+ rod
BC0219	BC5219	BC6219	BC7219	102mm stroke, bROD rod

The BC stroker kit for the Nissan KA24DE engine incorporates a 102mm stroke, steel billet crankshaft. Depending on bore size that you decide, the BC kit will take you up to a 2.60L with a safe 90mm bore. The KA24DE kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP pistons, wrist pins, full ring pack and buttons. Big time horsepower and torque gains.

Stock Specifications:
KA24DE 89mm Bore x 96mm Stroke - 9.723 Block Height

LEFT COLUMN