MSD 8577 distributor for the 1975-1979 Ford F-150 V8 7.5L, the 1977-1979 F-150 V8 6.6L and other vehicles is a small-diameter MSD Ignition distributor that sends the ignition trigger signal and distributes spark to each cylinder. The housing and cap are 5/8 in. smaller in diameter than stock Ford distributors, which leaves extra room in front of the engine.
- Pro-Billet construction with a CNC machined billet aluminum housing and billet aluminum base
- Nylon pads for smooth operation of the advance weights
- Mechanical advance assembly that can be locked out for crank trigger systems
- Advance plate and weights fine blanked from chrome moly steel, with weight pins staked and tig welded to the plate
- Polished steel shaft, QPQ coated and guided by a sealed ball bearing
- Maintenance-free magnetic pickup and precision reluctor for stable trigger signals through the rpm range
Quick facts
- Part: MSD 8577 distributor
- Fits: the 1975-1979 Ford F-150 V8 7.5L, the 1977-1979 F-150 V8 6.6L and other vehicles
- Material: CNC machined billet aluminum housing and base; cast iron gear
- Condition: New
Hard starting, a misfire or a rough idle can mean the distributor is worn, though spark plug wires or the ignition control can be behind the same signs, so find the cause before replacing it.
Fits
This distributor also fits the 1975-1979 Ford F-250 V8 7.5L, the 1977-1982 F-250 V8 6.6L, the 1983-1996 F-250 V8 7.5L and, as a Bronco distributor, the 1978-1979 Ford Bronco V8 6.6L. If your Ford is not named here, find your year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Cap: small diameter, with HEI style terminals
Build and materials
- Distributor type: magnetic pickup
- Housing and base: CNC machined billet aluminum
- Gear: cast iron, melonized and QPQ coated
- Color: red
- Condition: new
- C.A.R.B. EO #: D-40-39
- Warranty: MSD manufacturer's limited 1 year warranty
- Country of origin: United States
In the box
One distributor with a small-diameter cap with HEI style terminals, a race rotor, and advance springs and a stop bushing. This listing holds one distributor, and each vehicle takes one.
Installation notes
- Total advance is set by changing the supplied advance springs and stop bushing.
- Must be used with an MSD Ignition Control.
Frequently Asked Questions
Is the MSD 8577 a Ford F-150 distributor for the 1977-1979 Ford F-150 V8 6.6L?
Yes. MSD 8577 fits the 1977-1979 Ford F-150 V8 6.6L and the 1975-1979 Ford F-150 V8 7.5L. For another Ford, find your year, model and engine in the "Vehicles it fits" section.
Which cap and rotor come with the MSD 8577 distributor?
This MSD 8577 distributor comes with a small-diameter cap with HEI style terminals and a race rotor, plus advance springs and a stop bushing. The listing is one distributor.
What is the gear on the MSD 8577 made of?
The gear on this distributor is cast iron, melonized and QPQ coated. The housing and base are CNC machined billet aluminum.
Does this distributor need a specific ignition control?
Yes. The MSD 8577 must be used with an MSD Ignition Control, which receives its magnetic pickup trigger signal.
Can the mechanical advance on the MSD 8577 be locked out for a crank trigger setup?
Yes. The MSD 8577 has a mechanical advance that can be locked out for use with a crank trigger system.
