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Thursday, June 12, 2025

Volvo B4b engine: Guide for every engine code

Since 1944, the Volvo B4B engine and its variants have been used in several Volvo cars. The B4B engine was first introduced in 1944 and debuted in the Volvo PV444 (1944-1958). This engine remained in use until 1966.

Now, let's explore the technical engine codes for each B4B engine variant:


Volvo B4b:

B4b from a PV544

  • Configuration: I4 (Inline 4)
  • Displacement: 1.414 cc (1.4L)
  • Cylinder head material: Cast-iron
  • Cylinder block material: Cast-iron
  • Fuel system: Single carburetor
  • Aspiration: NA (Naturally aspirated)
  • Valve train: OHV
  • Common application: Volvo PV444 (1944-1958); Volvo PV544 (1958-1966); Volvo PV445/ PV445 Duett (1949-1960) among others.




  • Configuration: I4 (Inline 4)
  • Displacement: 1.414 cc (1.4L)
  • Cylinder head material: Cast-iron
  • Cylinder block material: Cast-iron
  • Fuel system: Dual carburetor
  • Aspiration: NA (Naturally aspirated)
  • Valve train: OHV
  • Common applications: Volvo PV444 (1944-1958); Volvo P1900 (1956-1957), among others.




Volvo B16 (A/B):
  • Configuration: I4 (Inline 4)
  • B16B from a Volvo Amazon
    Displacement: 1.583 cc (1.6L)
  • Cylinder head material: Cast-iron
  • Cylinder block material: Cast-iron
  • Fuel system: A- Single carburetor; 
  • B- Dual carburetor.
  • Aspiration: NA (Naturally aspirated)
  • Valve train: OHV
  • Common applications: Volvo PV444 (1944-1958); Volvo PV544 (1958-1966); Volvo Amazon (1956-1970), among others.


That wraps up our look at the classic Volvo B4b engine. And to finish off, what better way than hearing the beautiful sound of a B16 in action, courtesy of Brombass1


Thanks for reading- see you next time.

Volvo B4b engine: Guide for every engine code

Since 1944, the Volvo B4B engine and its variants have been used in several Volvo cars. The B4B engine was first introduced in 1944 and debu...