Hersteller: ACL Bearing Company
Modell: 4B1490H-STD
Für BMW - 1.6 1.8 1.9 (M40, M42, M43, M44)

Hersteller: ACL Bearing Company
Modell: 4B1490HX-STD
Für BMW - 1.6 1.8 1.9 (M40, M42, M43, M44)

ENGINE BEARINGS
	MAIN BEARING SET
	Part#
	5M1538H	5M1538HX
Sizes	STD, .025, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Upper & Lower
Material	Tri-metal
Min Std Shaft Size	2.3611in / 59.971mm
Max Std Shaft Size	2.3618in / 59.990mm
Min Std Tunnel Size	2.5591in / 65.000mm
Max Std Tunnel Size	2.5598in / 65.019mm
Max Wall at Crown	0.0980in / 2.490mm	0.0930in / 2.478mm
Max Overall Length	0.787in / 20.00mm #1,2,4,5 0.982in / 24.94mm #3 thrust
Notes
Diagram        (Top View)

Engines BMW - 1.6 1.8 1.9 (M40, M42, M43, M44)

ENGINE BEARINGS
	MAIN BEARING SET
	Part#
	5M1538H	5M1538HX
Sizes	STD, .025, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Upper & Lower
Material	Tri-metal
Min Std Shaft Size	2.3611in / 59.971mm
Max Std Shaft Size	2.3618in / 59.990mm
Min Std Tunnel Size	2.5591in / 65.000mm
Max Std Tunnel Size	2.5598in / 65.019mm
Max Wall at Crown	0.0980in / 2.490mm	0.0930in / 2.478mm
Max Overall Length	0.787in / 20.00mm #1,2,4,5 0.982in / 24.94mm #3 thrust
Notes
Diagram        (Top View)

Engines BMW - 1.6 1.8 1.9 (M40, M42, M43, M44)

	XP XP C4042-PR C4042-PR
Quantity	4
Crankshaft	44.991 / 44.973
Housing	48.001 / 48.016
Max Wall	1.491
Max Length	18.001

Engines: BMW - 1.6 1.8 1.9 2.0
(M40B16, M40B18, M42B18, M43B16, M43B18, M43B19, M44B19)

	XP XP F7016U-PR F7039L-PR	XP XP M7016U-PR M5578L-PR
Quantity	1	4
Crankshaft	59.990 / 59.972	59.990 / 59.972
Housing	65.001 / 65.019	65.001 / 65.019
Max Wall	2.494	2.494
Max Length	25.039	19.969

Engines: BMW - 1.6 1.8 1.9 2.0
(M40B16, M40B18, M42B18, M43B16, M43B18, M43B19, M44B19)

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.

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.

Product detailed specification
Model number	BMEVI-103S
Head diameter	30.50mm
Stem diameter	5.96mm
Length	105.65mm
Material	Inconel
Fits for	BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54)

Product detailed specification
Model number	BMEVN-1030
Head diameter	30.50mm
Stem diameter	5.96mm
Length	105.65mm
Material	Black nitrided stainless steel
Fits for	BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54)

Product detailed specification
Model number	BMIVN-1030
Head diameter	33.00mm
Stem diameter	5.97mm
Length	106.10mm
Material	Black nitrided stainless steel
Fits for	BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54)