| Also known as | E4504 |
| Diagram | Fig. 23 — AMAL CARBURETTER, TYPE 376 · ref 50 |
| Subsystem | engine top |
| Listed in parts books | 1963–1969 |
Insulating block 1 T90
An insulating block for the carburetor intake on the T90, also listed under the earlier E4504 number.
70-4504 is an insulating block for the carburetor intake, listed in the parts books as fitting the T90. It shows up across several inlet manifold and carburetor figures, sitting in the catalog right alongside the oil pump and release valve and inlet manifold listings, which tells you it lives up in the intake tract near the head, though our records don't spell out exactly how it's positioned in the stack.
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The part's job is straightforward for this class of component: an insulating block keeps carburetor heat separate from the engine, which helps with fuel vaporization and hot-starting issues. Beyond that, we don't have more detail on this one in terms of material or dimensions.
You'll also see this part under the older E4504 number if you're working from an earlier parts book. Same physical piece, just the legacy prefix form. Appears across catalog entries from 1963 to 1969, so if you're sourcing one, have your parts book handy to confirm the exact figure it lines up with before you order.
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