Parts by engine

ENGINE BEARINGS
	CON ROD BEARING SET
	Part#
	4B1568H	4B1568HX
Sizes	STD, .025, .25	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Identical Halves
Material	Tri-metal Hardened steel backs
Min Std Shaft Size	1.8888in / 47.975mm
Max Std Shaft Size	1.8894in / 47.9911mm
Min Std Tunnel Size	2.0472in / 52.000mm
Max Std Tunnel Size	2.0478in / 52.015mm
Max Wall at Crown	0.0785in / 1.993mm	0.0780in / 1.980mm
Max Overall Length	0.787in / 20.00mm
Notes	..
Diagram        (Top View)

Engines BMW 2.0 2.3 2.5 (S14B20, S14B23, S14B25)

	AM AM C 459 C 459
Quantity	4
Crankshaft	61.887 / 61.874
Housing	67.043 / 67.056
Max Wall	2.543
Max Length	31.001

Engines: BMW M3 E30 - 2.0 2.3 2.5 (S14B20, S14B23, S14B25)

ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.

Lifter data:
Outer diameter - 35.00mm
Inner diameter - 33.10mm
Outer height - 26.00mm
Stem length - 14.70mm
Stud diameter - 7.00mm
Weight - 50g
16 pcs. FCP Engineering racing mechanical solid lifters.
Forged steel, nitride hardened surface, HRC 50.
Installed follower height to camshaft must be adjusted with lash caps (not included).

Outer diameter - 32.97mm
Inner diameter - 31.00mm
Outer height - 26.50mm
Stem length - 13.90mm
Stud diameter - 7.00mm
16 pcs. FCP Engineering racing mechanical solid lifters
Forged steel, nitride hardened surface, HRC 50
Installed follower height to camshaft must be adjusted with lash caps (not included)

Spring info:
Seat pressure - 94lbs @ 35.70mm
Open (lift) pressure - 209lbs @ 10mm
Spring coil bind - 20.70mm
Rate - 11.50lbs/mm
Max lift - 15.00mm
Outer spring outer diameter - 29.65mm
Outer spring inner diameter - 21.85mm
Inner spring outer diameter - 20.50mm
Inner spring inner diameter - 15.50mm

Set includes:
Dual springs - 16 pcs. SPR-H1005D-BM
Titanium retainers - 16 pcs. RET-AU5VE-T1
Seats - 16 pcs. SEAT-BM60

Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.