ACL BMW M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm Stroke .25mm Oversized Conrod Bearing Set - 6B1490H-.25

• Series: ACL Race Series
• Bearing Type: Connecting rod bearing
• Shell Halves: Identical halves
• Bearing Material Code: F781
• Sizes Offered: STD, .025, .25, .50
• Housing Bore (Tunnel) Diameter: 48–48.016 mm (1.8898–1.8904 in)
• Journal Diameter (STD size): 44.975–44.991 mm (1.7707–1.7713 in)
• Vertical Oil Clearance (STD size): 0.029–0.077 mm (0.0011–0.003 in)
• Maximum Wall Thickness at Crown (STD size): 1.49 mm (0.0587 in)
• Bearing Width (max): 18 mm (0.709 in)

Engine Applications

• BMW M20B20 1991cc Inline6 SOHC 2v (bore 80 mm, stroke 66 mm) — BMW 320i E30, BMW 520i E28
• BMW M20B23 2315cc Inline6 SOHC 2v (bore 80 mm, stroke 76.8 mm) — BMW 323i E21, BMW 323i E30
• BMW M20B25 2494cc Inline6 SOHC 2v (bore 84 mm, stroke 75 mm) — BMW 525i E34
• BMW M20B27 2693cc Inline6 SOHC 2v (bore 84 mm, stroke 81 mm) — BMW 525E E28
• BMW M50B20 1991cc Inline6 DOHC 4v (bore 80 mm, stroke 66 mm)
• BMW M50B20TU 1991cc Inline6 DOHC 4v (bore 80 mm, stroke 66 mm)
• BMW M50B25 2494cc Inline6 DOHC 4v (bore 84 mm, stroke 75 mm) — BMW 325i E36
• BMW M50B25TU 2494cc Inline6 DOHC 4v (bore 84 mm, stroke 75 mm)
• BMW M52B20 1991cc Inline6 DOHC 4v (bore 80 mm, stroke 66 mm) — BMW Z3 E36-7
• BMW M52B20TU 1991cc Inline6 DOHC 4v (bore 80 mm, stroke 66 mm)
• BMW M52B25 2494cc Inline6 DOHC 4v (bore 84 mm, stroke 75 mm) — BMW 523i E39
• BMW M52B25TU 2494cc Inline6 DOHC 4v (bore 84 mm, stroke 75 mm)
• BMW M52B28 2793cc Inline6 DOHC 4v (bore 84 mm, stroke 84 mm) — BMW Z3 E36-7
• BMW M52B28TU 2793cc Inline6 DOHC 4v (bore 84 mm, stroke 84 mm)
• BMW M54B22 2171cc Inline6 DOHC 4v (bore 80 mm, stroke 72 mm) — BMW 320Ci E46, BMW 320i E46
• BMW M54B25 2494cc Inline6 DOHC 4v (bore 84 mm, stroke 75 mm) — BMW X3 E83
• BMW M54B30 2979cc Inline6 DOHC 4v (bore 84 mm, stroke 89.6 mm) — BMW 330d E92, BMW X3 E83