| Also known as | E4640, V232 |
| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD, T90 · ref 13 |
| Subsystem | engine top |
| Listed in parts books | 1964–1969 |
Inlet valve
Inlet valve for the T90/3TA cylinder head, PN 70-4640 (also E4640, V232).
This is the inlet valve for the cylinder head, part number 70-4640, also cataloged as E4640 and V232. It shows up in the parts books under CYLINDER BLOCK AND HEAD figures for the T90 and 3TA/T90 engines, with catalog appearances running from 1964 through 1969.
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The inlet valve opens to let the fuel/air charge into the combustion chamber and seals against the seat the rest of the time, so its condition matters for compression and how the engine breathes. Given how many catalog entries this number shows up in, it's a part that got specified across a run of years for these engines rather than a one-off fitment.
If you're rebuilding a head, check this against your own parts book listing before ordering, since valve specs can vary by engine even within the same general model family. Give the shop a call if you want us to confirm which head this one belongs to before it ships.
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