Engine Identification

Status	Induction and displacement confirmed. Factory LPG status pending Marti deluxe report.

Displacement and configuration

The engine is a Ford 429 (7.0L) V8, 4V induction, Lima-built. Confirmed by three independent on-vehicle sources:

Air cleaner lid stamping: 429 4V LIMA ENGINE
Valve cover tag: E7AE-9C485-CGG / 7.0L HFMO7.5AGEI
Intake manifold casting: 9425-DA (prefix obscured by coolant hose)

The E7AE prefix dates the valve cover to the 1987 engineering year, consistent with the October 1987 chassis build date. The engine is believed original to the chassis.

Induction hardware

Mixer: Impco CA425 — 4-barrel-flange mixer, correct for a stock 4V 429.
Mount: cast-style, no obvious aftermarket adapter plate. Photographed for the record.
Fuel: LPG. Believed factory or ship-through conversion; see Fuel system status.

Intake casting

Field	Value
Family code	`9425` (intake manifold)
Suffix	`DA` (4V revision)
Prefix	D8VE
Location	Top surface, front of carb pad
Status	4V confirmed;

Fuel system status

Believed factory LPG — pending Marti deluxe confirmation.

Supporting evidence:

Cast-style mixer mount with no obvious aftermarket plate
DSO special order tag (DSO 74 / SO 3152) on firewall
Factory fleet options: built-in traction sanders, front tow hooks

On confirmation, upgrade to fact and cite the Marti invoice line. If the invoice shows a ship-through or upfitter conversion, log as "factory-ordered LPG conversion."

Blower build notes

Single Model E vaporizer is insufficient for boosted volume — plan on dual Model E vaporizers, boost-referenced, parallel coolant feed, equal-length reference lines from a common manifold source, and a lockoff sized for combined flow.
Single CA425 mixer is insufficient at target power — plan on dual mixers into a common plenum with a fabricated dual-plate adapter.
Compression and cam to be measured by the shop before boost selection; do not assume gasoline-spec figures.
Heads to be checked for LPG-spec hardened seats at teardown.

Documentation

Photos filed: air cleaner lid, valve cover tag, intake casting, mixer and mount, engine bay overall.

Engine Identification

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