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BMW

BMW M20 M50 M52 M54 ACL Race connecting rod bearings 6B1490H-0.25
ENGINE BEARINGS
rods.jpg

CON ROD BEARING SET

Part#
6B1490H

6B1490HX

 
Sizes STD, .025, .25, .50 STD
Oil Clearance Standard + 0.001" Extra
Half Type Identical Halves
Material

Tri-metal Hardened steel backs

Min Std Shaft Size

1.7707in / 44.975mm

Max Std Shaft Size

1.7713in / 44.991mm

Min Std Tunnel Size

1.8898in / 48.000mm

Max Std Tunnel Size

1.8904in / 48.016mm

Max Wall at Crown

0.0588in / 1.493mm

0.0583in / 1.481mm

Max Overall Length

0.709in / 18.00mm

Notes

Diagram       
(Top View) 

6B1490H_000.GIF
Engines BMW - 2.0 2.3 2.5 2.7 2.8 3.0 (M20B20, M20B25, M20B27, M50B20,
M50B25, M50B27, M52B20, M52B25, M52B28, M54B25, M54B22, M54B30)
99,00 €
BMW 3.0 3.2 S50B30 EURO, S50B32 Athena MLS head gasket 87x1.8mm 338081R

Athena Racing 338 series multilayer steel (MLS) cylinder head gasket.
Athena MLS gaskets are designed to suit the requirements of today’s competition engines offering enhanced sealing compared to the OEM product.
The gaskets are assembled from 2-5 layers of high quality stainless and spring steels.
Part number: 338081R
Gasket thickness: 1.80mm
Bore size: 87.00mm


Part number starting with 338

Athena advantages

Optimized radius embossing shape

The round shape of the embossing increases sealing on cylinder bore, oil and cooling water passages and improves spring back strength

Advanced stopper technology

State of the technology enhances sealing pressure around the cylinder. Highest sealing properties in high power engines

Coating technology

Designed & engineered by Athena the special coating applied on steel surfaces, improves temperature resistance & reliability of the head gasket

255,00 €
BMW BMEVN-1031S +1mm 1.8/2.5/2.8/3.0 exhaust valves
BMW 3.2 S54B32 Supertech intake valve BMIVN-1045S +1mm

Product detailed specification

Model number

BMIVN-1045S

Head diameter

36.00mm

Stem diameter

5.97mm

Length

117.50mm

Material

Black nitrited stainless steel

Fits for

BMW M3 E46 - 3.2 (S54B32)

31,00 €
BMW E30 318is 1.8 16V M42 FCP mechanical racing solid lifter kit 35mm

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).

359,00 €
BMW M3 S14 Supertech valve spring set SPRK-H1005D-S14
Spring data:
Seat pressure - 90lbs @ 35.5mm
Open (lift) pressure - 230lbs @ 13.0mm
Spring coil bind - 21.50mm
Max lift - 14.80mm
Rate - 11.50mm
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:
Double springs - 16 pcs. SPR-H1005D-S14
Titanium retainers - 16 pcs. RET-BMS14-T1
Seats - 16 pcs. SEAT-H1002-S14
735,00 €
BMW 3.0 N54B30 Supertech black nitrided intake valve BMIVN-1054S STD

Product detailed specification

Model number

BMIVN-1054S

Head diameter

31.40mm

Stem diameter

4.96mm

Length

106.70mm

Material

Black nitrided stainless steel

Fits for

BMW E60, E90, E91, E92, E93, E82, E88, E89, X6, Z4, F01 (N54B30)

33,00 €
BMW M5 E34 3.6 S38B36 Wiseco pistons CR 8.0 94mm KE240M94

Product detailed specification

Bore size

94.00mm

Stroke

86.00mm

Wiseco compression ratio (CR)

8.0:1

OEM compression ratio (CR)

10.0:1

Dome volume (CC)

-8.0cm3

Compression height (CH)

30.22mm

Pin diameter

22mm

Features

Accepts Turbo and Nitrous

Fits for

BMW E34 M5 - 3.6 24V (S38B36)

Wiseco ArmorGlide skirt coating is a dry film lubricant applied to the piston skirt. This coating helps reduce friction, improving performance, and will also help quiet the piston in the cylinder bore. This coating is permanently applied, and is not a break in coating, it is on the piston for the life of the part.
1 229,00 €
Cometic BMW M30B30 M30B32 MLS cylinder head gasket 90x1.3mm C4476-051
COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
325,00 €
Cometic BMW 4.4 V8 N62B44 MLS cylinder head gasket kit 94x1.3mm C4374-051
COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
399,00 €
BMW M5 F10 4.4 S63B44B coated JE Pistons kit CR 10.0:1 89mm

Product detailed specification

Bore size

89.00mm

Stroke

88.30mm

JE Pistons compression ratio (CR)

10.0:1

OEM compression ratio (CR)

10.0:1

Dome volume (CC)

-9cm3

Compression height (CH)

32.00mm

Pin diameter

22mm (HD)

2 699,00 €
BMW 3.0 N55B30 S55B30 Supertech black nitrided intake valve BMIVN-1055S STD

Product detailed specification

Model number

BMIVN-1055S

Head diameter

32.00mm

Stem diameter

4.97mm

Length

104.9mm

Material

Black nitrided stainless steel

Fits for

BMW E60, E90, E91, E92, E93, E82, E88, E89, X6, Z4, F01 - 3.0 (N55B30, S55B30)

33,00 €
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