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Ford V8 1962-91 221/255/260/289/302 Camshaft Specs - MC4120 & MC1734 Cam Chart

Printed camshaft specification table for Ford V8 engines showing lift, duration, RPM range and grind notes.

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This document is a cropped scan of a camshaft specification table (apparently from an aftermarket camshaft catalog, likely Melling given the 'MC' part number prefix) covering Ford V8 engines from 1962-91 in 221, 255, 260, 289, and 302 cubic inch displacements, except the 1982-85 302 H.O. and 302 C.I. engines with hydraulic roller lifters. The firing order is listed as 1-5-4-2-6-3-7-8. Two camshaft part numbers are fully visible: MC4120, a hydraulic cam with duration figures of 190/202 and 258/271, lift of .413/.437, lobe centers 106/114, a 1000-4000 RPM operating range, smooth idle, 900 (likely idle RPM or vacuum-related spec), and application code B, noted for good low-end torque and towing; and MC1734, a hydraulic cam with 204/214 and 280/290 duration, .448/.472 lift, 108/116 centers, 1500-4000 RPM range, smooth idle, codes B and G, noted for strong low-end torque, towing, and good mileage. A third row is cut off at the bottom. Column headers are not visible in the scan, so column meanings are inferred from typical cam spec layouts.

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Frequently asked questions

What Ford engines does this camshaft chart cover?
Ford V8 engines from 1962-91 in 221, 255, 260, 289, and 302 cubic inch sizes, except the 1982-85 302 H.O. and 302 C.I. engines with hydraulic roller lifters.
What is the firing order listed for these Ford V8 engines?
The firing order shown is 1-5-4-2-6-3-7-8.
What are the specs of the MC4120 camshaft?
MC4120 is a hydraulic (HYD) cam with values of 190/202 and 258/271 duration, .413/.437 lift, 106/114, a 1000-4000 RPM range, smooth idle characteristic, and code B. The comment states it has good low end torque and is good for towing.
Which cam in this chart is recommended for towing with good mileage?
The MC1734 hydraulic cam (204/214 & 280/290 duration, .448/.472 lift, 1500-4000 RPM range) is noted for strong low end torque, good for towing, and good mileage.
What RPM range does the MC1734 cam operate in?
The chart lists a 1500-4000 RPM operating range for the MC1734, with a smooth idle characteristic.

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