ACL STD High Performance Rod Bearing Set for VW/Audi 1781cc/1984cc # 4B1606H-STD

Description

ACL STD High Performance Rod Bearing Set for VW/Audi 1781cc/1984cc #4B1606H-STD
Description
BRAND NEW IN BOX
ACL 4B1606H-STD
ENGINE BEARINGS
CON ROD BEARING SET
MAIN BEARING SET
Part#
Part#
4B1606H
5M1644H
Sizes
STD, .025, .25, .50
STD, .25, .50
Oil Clearance
Standard
Standard
Half Type
Identical Halves
Upper & Lower
Material
Tri-metal Hardened steel backs
Tri-metal
Min Std Shaft Size
1.8802in / 47.758mm
2.1243in / 53.958mm
Max Std Shaft Size
1.8810in / 47.778mm
2.1251in / 53.978mm
Min Std Tunnel Size
1.9921in / 50.600mm
2.3228in / 59.000mm
Max Std Tunnel Size
1.9929in / 50.619mm
2.3236in / 59.019mm
Max Wall at Crown
0.0553in / 1.405mm
0.0985in / 2.502mm
Max Overall Length
0.748in / 19.00mm
0.728in / 18.49mm
Notes
contains one oil hole
Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower.
One often overlooked part when building an engine is the bearings. Getting a quality set of bearings can directly determine the longevity of your engine. We prefer to use ACL Race Bearings in all of our cars, and suggest them to all of our customers as well.
ACL Race Series Performance Engine Bearings
The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings. Designed to withstand higher RPM conditions
Features
:
High strength overlay plate with reduced thickness for improved fatigue properties
Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
Increased crush for improved bearing retention
Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.
Tight consistent wall tolerances to help you maintain consistent clearances.
Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.
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Shipping
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Item ships within one business day after the payment has cleared or same day if paid by 12pm PST unless additional handling stated.
Item purchased is shipped from West or East Coast Warehouses of ours depending on availability.
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Shipping charges are non-refundable.
We will gladly combine shipping charges to one charged based on the total weight of the package.       C
Payment & Return
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Per our return policy this item can be returned in 30 days, buyer is responsible for the return shipping, 20% restocking fee may apply.
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Please contact us if you have any question.