A leaking valve cover gasket, worn motor mounts and dropping oil pressure are classic reasons to dig into the B30. The inline-six in the 164 is considered very reliable and rarely fails on its own, but rubber and gaskets age – and here the parts are split by system so the right version ends up on the right engine.
Inlet valve, High Performance, for Volvo B20A, B20B, B30A, 42mm
Amazon, 164, 140, 240
$ 33.34
Model year:
1969–1973
Dimensions:
Ø 42 mm (1.65 in)
Engine:
B20, B20A, B20B, B30A
Quantity per car:
Volvo 164: 6 pcs · Volvo Amazon B20: 4 pcs
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The subcategories distinguish between the carburetor engine B30A and the fuel-injected B30E/B30F, since the cylinder head and valve mechanism vary between versions. When rebuilding, gasket sets, the lubricating system and the motor mounting are typical checkpoints.