(1) NOS Delco 30‑133 Carburetor Needle & Seat Assembly – GM #7035133 – Rochester B / BC / BV / 2G
Description:
NOS Delco 30‑133 Carburetor Needle & Seat Assembly – GM #7035133 – Rochester B / BC / BV / 2G
Sold Each - Several available
For sale is a New Old Stock Delco 30‑133 Needle & Seat Assembly, GM part number 7035133, complete with its original Delco box. This is the correct fuel inlet needle and seat used on a wide range of 1950s–1960s Chevrolet and GMC carburetors, including the Rochester Model B, BC, BV, and early 2‑Jet (2G/2GC) units.
Delco 30‑133
Carburetor Needle & Seat Assembly GM Part No. 7035133 Group 3.814**
This is a needle‑and‑seat fuel inlet assembly used in a wide range of 1950s–1960s Rochester carburetors, especially the Rochester Model B, BC, BV, and early 2‑Jet (2G/2GC) units found on Chevrolet and GMC passenger cars and trucks.
Below is the full breakdown.
**📘 FITMENT CHART — GM 7035133 / DELCO 30‑133
Carburetor Needle & Seat Assembly**
Primary Carburetor Applications
| Carburetor Model | Type | Notes |
|---|---|---|
| Rochester Model B | 1‑bbl | Most common application; used on 235/261 I6 |
| Rochester BC / BV | 1‑bbl | Variants with automatic choke (BC) or manual (BV) |
| Rochester 2G / 2GC (early) | 2‑bbl | Used on small‑block V8s in late 50s–early 60s |
| Rochester 2GV | 2‑bbl | Vacuum‑operated choke version |
📘 VEHICLE FITMENT — BY YEAR, MAKE, MODEL, ENGINE
Chevrolet Passenger Cars
| Years | Models | Engines | Carburetor |
|---|---|---|---|
| 1955–1962 | 150 / 210 / Bel Air / Biscayne / Impala | 235 I6 | Rochester B / BC / BV |
| 1957–1964 | Bel Air / Biscayne / Impala | 283 V8 | Rochester 2G / 2GC |
| 1962–1965 | Impala / Bel Air | 327 V8 | Rochester 2G / 2GC |
Chevrolet Trucks
| Years | Models | Engines | Carburetor |
|---|---|---|---|
| 1955–1962 | 3100–6400 series | 235 I6 | Rochester B |
| 1956–1965 | C10 / C20 / C30 | 235 / 261 I6 | Rochester B / BC |
| 1957–1966 | C/K trucks | 283 / 327 V8 | Rochester 2G / 2GC |
GMC Trucks
| Years | Models | Engines | Carburetor |
|---|---|---|---|
| 1955–1962 | 100–300 series | 235 / 261 I6 | Rochester B |
| 1957–1965 | 1000–3000 series | 283 / 305 V6 | Rochester 2G (early) |
Correct for:
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1955–62 Chevrolet 235 I6 (Rochester B/BC/BV)
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1957–64 Chevrolet 283 V8 (Rochester 2G/2GC)
-
1962–65 Chevrolet 327 V8 (2G/2GC)
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1955–65 Chevrolet & GMC trucks with 235/261 I6
-
Early Rochester 2‑Jet V8 applications
Condition
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Genuine NOS Delco part
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Clean, unused, no corrosion
-
Original box included
Why You Want It
Perfect for carburetor rebuilds, stock restorations, or anyone wanting authentic Delco hardware. NOS needle‑and‑seat assemblies ensure proper fuel metering and prevent flooding issues common with modern offshore replacements.
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Location - office shelf - right of computer - right bottom - in box of 10


