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4B8366H-.50 - ACL Race Series Connecting Rod Bearings


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Part #: 4B8366H-.50
Notes: Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
MSRP: $75.36
Your Price: $53.22

Specs

Max Overall Length 0.839"(21.30mm)
Max Std Shaft Size 1.8898"(48.000mm)
Max Std Tunnel Size 2.0088"(51.024mm)
Max Wall at Crown 0.0586"(1.488mm)
Min Std Shaft Size 1.8892"(47.985mm)
Min Std Tunnel Size 2.0080"(51.004mm)
Oil Clearance Standard
Size .50

This Item Also Available In

Part Number Price Notes & Specs
1B1808H-.025 $15.85 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.791"(20.10mm)
Max Std Shaft Size 2.1263"(54.008mm)
Max Std Tunnel Size 2.2527"(57.219mm)
Max Wall at Crown 0.0626"(1.590mm)
Min Std Shaft Size 2.1257"(53.993mm)
Min Std Tunnel Size 2.2522"(57.206mm)
Oil Clearance Standard
Size .025
1B634H-20 $16.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.726"(18.44mm)
Max Std Shaft Size 2.1236"(53.939mm)
Max Std Tunnel Size 2.2398"(56.891mm)
Max Wall at Crown 0.0574"(1.458mm)
Min Std Shaft Size 2.1228"(53.919mm)
Min Std Tunnel Size 2.2390"(56.871mm)
Oil Clearance Standard
Size .20
1B663H-10 $13.76 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.837"(21.25mm)
Max Std Shaft Size 2.1000"(53.340mm)
Max Std Tunnel Size 2.2252"(56.52mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.0990"(53.315mm)
Min Std Tunnel Size 2.2247"(56.507mm)
Oil Clearance Standard
Size .10
1B663H-11 $13.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.837"(21.25mm)
Max Std Shaft Size 2.1000"(53.340mm)
Max Std Tunnel Size 2.2252"(56.52mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.0990"(53.315mm)
Min Std Tunnel Size 2.2247"(56.507mm)
Oil Clearance Standard
Size .11
1B663HD-10 $13.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Dowel Hole in Lower Half
Suits conrods with dowel pin locators
Max Overall Length 0.837"(21.25mm)
Max Std Shaft Size 2.1000"(53.340mm)
Max Std Tunnel Size 2.2252"(56.52mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.0990"(53.315mm)
Min Std Tunnel Size 2.2247"(56.507mm)
Oil Clearance Standard
Size .10
1B663HD-STD $13.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Dowel Hole in Lower Half
Max Overall Length 0.837"(21.25mm)
Max Std Shaft Size 2.1000"(53.340mm)
Max Std Tunnel Size 2.2252"(56.52mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.0990"(53.315mm)
Min Std Tunnel Size 2.2247"(56.507mm)
Oil Clearance Standard
Size Standard
1B743H-11 $16.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.889"(22.58mm)
Max Std Shaft Size 2.2000"(55.880mm)
Max Std Tunnel Size 2.3252"(59.060mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.1990"(55.855mm)
Min Std Tunnel Size 2.3247"(59.047mm)
Oil Clearance Standard
Size .11
1B743HD-STD $16.13 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Dowel Hole in Lower Half
Suits conrods with dowel pin locators
Max Overall Length 0.889"(22.58mm)
Max Std Shaft Size 2.2000"(55.880mm)
Max Std Tunnel Size 2.3252"(59.060mm)
Max Wall at Crown 0.0619"(1.572mm)
Min Std Shaft Size 2.1990"(55.855mm)
Min Std Tunnel Size 2.3247"(59.047mm)
Oil Clearance Standard
Size Standard
1B745H-01 $15.66 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
w/ 2.000" journal
Max Overall Length 0.842"(21.38mm)
Max Std Shaft Size 2.0000"(50.800mm)
Max Std Tunnel Size 2.1252"(53.980mm)
Max Wall at Crown 0.0621"(1.577mm)
Min Std Shaft Size 1.9990"(50.775mm)
Min Std Tunnel Size 2.1247"(53.967mm)
Oil Clearance Standard
Size .01
4B1146H-.025 $37.23 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.925"(23.50mm)
Max Std Shaft Size 1.7717"(45.000mm)
Max Std Tunnel Size 1.8906"(48.020mm)
Max Wall at Crown 0.0588"(1.494mm)
Min Std Shaft Size 1.7713"(44.991mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size .025
4B1146H-.25 $53.55 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.925"(23.50mm)
Max Std Shaft Size 1.7717"(45.000mm)
Max Std Tunnel Size 1.8906"(48.020mm)
Max Wall at Crown 0.0588"(1.494mm)
Min Std Shaft Size 1.7713"(44.991mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size .25
4B1146HX-STD $53.55 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.925"(23.50mm)
Max Std Shaft Size 1.7717"(45.000mm)
Max Std Tunnel Size 1.8906"(48.020mm)
Max Wall at Crown 0.0583"(1.481mm)
Min Std Shaft Size 1.7713"(44.991mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance + 0.001" Extra
Size Standard
4B1185H-STD $35.26 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.831"(21.10mm)
Max Std Shaft Size 1.7715"(44.996mm)
Max Std Tunnel Size 1.8905"(48.019mm)
Max Wall at Crown 0.0586"(1.488mm)
Min Std Shaft Size 1.7709"(44.981mm)
Min Std Tunnel Size 1.8897"(47.998mm)
Oil Clearance Standard
Size Standard
4B1370-030 $15.00 Notes Connecting Rod Bearings
Size .'030
4B1490H-.50 $100.12 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.709"(18.00mm)
Max Std Shaft Size 1.7713"(44.991mm)
Max Std Tunnel Size 1.8904"(48.016mm)
Max Wall at Crown 0.0588"(1.493mm)
Min Std Shaft Size 1.7707"(44.975mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size .50
4B1606H-STD $33.54 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Bearing has 1.65mm oil hole at crown
Max Overall Length 0.748"(19.00mm)
Max Std Shaft Size 1.8810" /47.778mm)
Max Std Tunnel Size 1.9929" /50.619mm)
Max Wall at Crown 0.0553"(1.405mm)
Min Std Shaft Size 1.8802" /47.758mm)
Min Std Tunnel Size 1.9921" /50.600mm)
Oil Clearance Standard
Size Standard
4B1780H-STD $48.04 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.673"(17.10mm)
Max Std Shaft Size 1.6535"(42.000mm)
Max Std Tunnel Size 1.7726"(45.024mm)
Max Wall at Crown 0.0585"(1.487mm)
Min Std Shaft Size 1.6529"(41.985mm)
Min Std Tunnel Size 1.7717"(45.000mm)
Oil Clearance Standard
Size Standard
4B1906H-.50 $50.19 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.610"(15.50mm)
Max Std Shaft Size 1.7717"(45.000mm)
Max Std Tunnel Size 1.8907"(48.024mm)
Max Wall at Crown 0.0591"(1.502mm)
Min Std Shaft Size 1.7707"(44.976mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size .50
4B1912H-.025 $45.97 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.764"(19.40mm)
Max Std Shaft Size 1.8898"(48.000mm)
Max Std Tunnel Size 2.0088"(51.024mm)
Max Wall at Crown 0.0589"(1.496mm)
Min Std Shaft Size 1.8890"(47.980mm)
Min Std Tunnel Size 2.008"(51.004mm)
Oil Clearance Standard
Size .025
4B1946H-.25 $53.04 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.768"(19.50mm)
Max Std Shaft Size 1.7717"(45.000mm)
Max Std Tunnel Size 1.8907"(48.024mm)
Max Wall at Crown 0.0592"(1.504mm)
Min Std Shaft Size 1.7709"(44.980mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size .25
4B8320H-.25 $39.70 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
For 48mm journal
Max Overall Length 0.615"(15.63mm)
Max Std Shaft Size 1.8898"(48.000mm)
Max Std Tunnel Size 2.0079"(51.000mm)
Max Wall at Crown 0.0590"(1.498mm)
Min Std Shaft Size 1.8891"(47.984mm)
Min Std Tunnel Size 2.0079"(51.000mm)
Oil Clearance Standard
Size .25
4B8320H-1.00 $29.66 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
For 48mm journal
Max Overall Length 0.615"(15.63mm)
Max Std Shaft Size 1.8898"(48.000mm)
Max Std Tunnel Size 2.0079"(51.000mm)
Max Wall at Crown 0.0590"(1.498mm)
Min Std Shaft Size 1.8891"(47.984mm)
Min Std Tunnel Size 2.0079"(51.000mm)
Oil Clearance Standard
Size .025
4B8351H-.25 $38.24 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.669"(17.00mm)
Max Std Shaft Size 1.7699"(44.956mm)
Max Std Tunnel Size 1.8904"(48.016mm)
Max Wall at Crown 0.0596"(1.515mm)
Min Std Shaft Size 1.7693"(44.940mm)
Min Std Tunnel Size 1.8896"(47.996mm)
Oil Clearance Standard
Size .25
4B8351H-STD $37.58 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Upper & Lower
Max Overall Length 0.669"(17.00mm)
Max Std Shaft Size 1.7699"(44.956mm)
Max Std Tunnel Size 1.8904"(48.016mm)
Max Wall at Crown 0.0596"(1.515mm)
Min Std Shaft Size 1.7693"(44.940mm)
Min Std Tunnel Size 1.8896"(47.996mm)
Oil Clearance Standard
Size Standard
6B1490H-STD $88.29 Notes Connecting Rod Bearings
Tri-Metal Hardened Steel Backs
Identical Halves
Max Overall Length 0.709"(18.00mm)
Max Std Shaft Size 1.7713"(44.991mm)
Max Std Tunnel Size 1.8904"(48.016mm)
Max Wall at Crown 0.0588"(1.493mm)
Min Std Shaft Size 1.7707"(44.975mm)
Min Std Tunnel Size 1.8898"(48.000mm)
Oil Clearance Standard
Size Standard

All Fitments

UNKNOWN
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
0 - 0 NO FITMENT SPECIFIED ALL ALL ALL ALL ALL ALL

Product Description

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, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications and feature:

  • 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.
  • 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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