What distributor advance specs does a 1972 351C-4V manual Mustang use?

Distributor D2ZF-EA (49 States, M trans): centrifugal advance 0-1/2° at 500 RPM, 0-1-1/4° at 750, 1-3-1/4° at 1000, 5-1/2-8-1/4° at 1500, and 10-1/2-13° at 2000 RPM; vacuum advance 0-3° at 5 in. Hg and 2-1/2-5-1/2° at 10, 15, and 20 in. Hg; vacuum retard 0-4-1/2° at 5 in. Hg and 5-7° at 10-20 in. Hg.

How is the test stand set up for these centrifugal advance measurements?

The table states the test stand is set to 0° at 250 RPM and 0 in. Hg for centrifugal advance, and to 0° at 1000 RPM and 0 in. Hg for the vacuum advance and vacuum retard readings.

What do M and A mean in the transmission column?

Per the footnote, M means Manual and A means Automatic transmission.

Are separate distributors listed for California cars?

Yes. The tables have separate '49 States' and 'Calif.' distributor number columns; for example the 1600cc Pinto uses 721F-YA in 49 states and 721F-TA in California.

What distributor is specified for the 460 CID Lincoln Mark IV?

D2VF-BA (both 49 States with 3.0 axle per footnote ①, and California), automatic transmission, with centrifugal advance 0-1° at 500 RPM up to 9-11-1/2° at 2000 RPM and vacuum advance up to 9-12° at 20 in. Hg.

Home/ Registry/ Ford/ Ranchero/ 1972-1976/ 1972 Ford Ranchero/ Photo supermotors.net/registry/media/733260

1972 Ford Distributor Specifications Chart - Advance/Retard Curves All Engines

Ford Group 23 ignition system distributor specifications chart with centrifugal and vacuum advance

‹ ›

Reference · 1972-1976 RancheroAll 40 data & spec plates

Reproduction 1978 Ford 351M/400 emission control decal D8OE-9C485-AF, 12°BTDC timing, catalyst

Worn Ford 351C vehicle emission control information decal with 16°BTDC timing and 1000 RPM idle

1972 Ford Distributor Specifications - 351C, 351W, 400, 429, 460 Advance Curves

1972 Ford Distributor Specifications Chart: Advance Curves by Engine & Model

1972 Ford Distributor Specifications Chart - Advance/Retard Curves All Engines

'78 Ford 351M/400 non-catalyst engine emission control label with timing and idle RPM table

'73 Ford 351C vehicle emission control information label with timing, idle and spark plug specs

1972 Ford Distributor Specifications - Centrifugal & Vacuum Advance Curves

1975 Ford Ranchero Door Jamb Data Plate - VIN, GVWR & Body/Trim Codes

Ford door data plate dated 09/71 with VIN 2A47H113664, body 97D and color 4P

Ford Motor Co. certification label on a door jamb beside a wasp nest

40data & spec plates1972-1976 Ford Ranchero More reference

Ford V8 Firing Order Diagram - 351W, 351C, 302 HO & Other V8 Cylinder Numbers

Manual page

CAR CRAFT January 1962 magazine cover featuring a custom yellow car

Brochure

Exploded parts

Ford 351 Cleveland V8 Oiling System Diagram - Oil Flow Sketch (Mains, Cam, Lifters)

Schematic

Blueprint

Ford 351C Cleveland Head Gasket Modification - 5/32 Hole Drilling Diagram

Service procedure

Ford Fuel Pump Relay Connector Pinout - Wire Colors & Pin Functions

Wiring diagram

Engine spec table for Ford, Lincoln, Mercury passenger and truck 6 and V6 engines by displacement and year

Torque spec

Ford Group 23 distributor specification table listing distributor numbers, engine/transmission applications, centrifugal advance at RPM and vacuum advance/retard at inches Hg for Pinto, Maverick and other models.

Part of 1972-1976 Ford Ranchero Data & Spec Plates

AI caption May 2009 · Photo 465 of 1000

This two-page scan (pages 26-27, Group 23 Ignition System) presents Ford's Distributor Specifications tables for 1972-model engines, identifiable by the D2-prefix distributor part numbers (basic part 12127). Engines covered range from the 1600cc and 2000cc Pinto and 2600cc Capri engines through the 170, 200, 240, 250, and 302 CID sixes/V8s on the first page, and the 351W, 351C-2V, 351C-4V, 351C-HO, 400 CID, 429 CID, 429 Police, and 460 CID engines on the second page. For each engine, the tables list separate 49-States and California distributor numbers, transmission type (M-Manual, A-Automatic), and applicable car lines (Pinto, Capri, Maverick, Comet, Mustang, Cougar, Torino, Montego, Ford, Mercury, Thunderbird, Lincoln, Mark IV). Specification columns give centrifugal advance in degrees at 500, 750, 1000, 1500, and 2000 RPM (test stand set to 0° at 250 RPM and 0 in. Hg), vacuum advance in degrees at 5, 10, 15, and 20 inches Hg, and vacuum retard at the same vacuum points (set to 0° at 1000 RPM and 0 in. Hg). Footnotes note '① With 3.0 Axle' and '② All except Thunderbird.' The document lets a reader verify correct distributor calibration curves when testing or recurving a 1972 Ford distributor.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What distributor advance specs does a 1972 351C-4V manual Mustang use?: Distributor D2ZF-EA (49 States, M trans): centrifugal advance 0-1/2° at 500 RPM, 0-1-1/4° at 750, 1-3-1/4° at 1000, 5-1/2-8-1/4° at 1500, and 10-1/2-13° at 2000 RPM; vacuum advance 0-3° at 5 in. Hg and 2-1/2-5-1/2° at 10, 15, and 20 in. Hg; vacuum retard 0-4-1/2° at 5 in. Hg and 5-7° at 10-20 in. Hg.
How is the test stand set up for these centrifugal advance measurements?: The table states the test stand is set to 0° at 250 RPM and 0 in. Hg for centrifugal advance, and to 0° at 1000 RPM and 0 in. Hg for the vacuum advance and vacuum retard readings.
What do M and A mean in the transmission column?: Per the footnote, M means Manual and A means Automatic transmission.
Are separate distributors listed for California cars?: Yes. The tables have separate '49 States' and 'Calif.' distributor number columns; for example the 1600cc Pinto uses 721F-YA in 49 states and 721F-TA in California.
What distributor is specified for the 460 CID Lincoln Mark IV?: D2VF-BA (both 49 States with 3.0 axle per footnote ①, and California), automatic transmission, with centrifugal advance 0-1° at 500 RPM up to 9-11-1/2° at 2000 RPM and vacuum advance up to 9-12° at 20 in. Hg.