ACL Bearing Set Honda B16A B18B – Race Series Rod, Main & Thrust

Description

The ACL Bearing Set Honda B16A listing lets you choose every ACL bearing for a B16A or B18B rebuild from one dropdown: Race Series rod bearings, main bearings and thrust washers. The same three part numbers also suit the B17A1 and B18A1, and the B18B block is the usual base for LS-VTEC builds, so this one page covers a lot of B-series projects.

Choose your bearing from the dropdown

• Conrod bearing – standard crank: ACL 4B1946H-STD, 8 identical shells for 4 rods. Crank pin 44.98–45.00mm.
• Main bearing – standard size: ACL 5M1959H-STD, 10 shells. Journal 54.98–55.00mm.
• Thrust washer set – standard crank: ACL 1T1957-STD, 2 halves for one engine.

Every option is the standard (STD) size for a crank that hasn’t been reground. ACL also makes HX (+0.025mm clearance), 0.025mm and 0.25mm versions. Contact us if your machinist needs a different size.

ACL Race Series technology

• Tri-metal design: a high-tensile steel back, a copper-lead-tin lining, a nickel barrier and a lead-tin-copper overlay. The overlay is thinner on the rod shells for better fatigue strength.
• Hardened steel backs on the rod bearings, and increased crush for retention and heat transfer.
• Increased eccentricity to cope with bore distortion at high rpm.
• Grooved main bearings: fully grooved uppers with partial-groove lowers, to keep oil flowing to the big ends.
• No flash plating. This gives better housing contact. The dark colour of new shells is normal.
• Enlarged ID chamfers for performance cranks with large fillet radii.

B20B / B20Z: ACL lists the same rod, main and thrust part numbers for these blocks too. B18C: uses a different rod bearing (4B1925H). See our B18C set instead.

Related parts

Prefer to buy each item separately? See the ACL rod bearings for the Honda B16A, or browse the full ACL Bearings range. ACL’s Race Series catalogue has the complete application list.

Engines this bearing set fits

• Honda B16A
• Honda B17A1
• Honda B18A1
• Honda B18B1, B18B2

Honda models this fits

• Honda Civic [EF/EF9] (1988-1992) – EF9 1.6i-VT / SiR (B16A)
• Honda Civic [EG/EG6] (1992-1995) – EG6 VTi (B16A2)
• Honda Civic [EK] (1996-2000) – EK4 VTi (B16A2)
• Honda CRX [ED] (1983-1993) – ED9 1.6i-VT (B16A)
• Honda Del Sol (1992-1998) – Del Sol VTi (B16A2)