Bus Specs Start: Difference between revisions
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== Engine Identification == | == Engine Identification == | ||
{ | {| class="wikitable" | ||
|- | |||
| '''Status''' || Induction and displacement '''confirmed'''. Factory LPG status '''pending Marti deluxe report'''. | |||
|} | |||
=== Displacement and configuration === | === Displacement and configuration === | ||
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The engine is a '''Ford 429 (7.0L) V8, 4V induction, Lima-built'''. Confirmed by three independent on-vehicle sources: | The engine is a '''Ford 429 (7.0L) V8, 4V induction, Lima-built'''. Confirmed by three independent on-vehicle sources: | ||
* Air cleaner lid stamping: | * Air cleaner lid stamping: <code>429 4V LIMA ENGINE</code> | ||
* Valve cover tag: | * Valve cover tag: <code>E7AE-9C485-CGG</code> / <code>7.0L HFMO7.5AGEI</code> | ||
* Intake manifold casting: | * Intake manifold casting: <code>9425-DA</code> (prefix obscured by coolant hose) | ||
The | The <code>E7AE</code> 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 === | === Induction hardware === | ||
| Line 36: | Line 39: | ||
! Field !! Value | ! Field !! Value | ||
|- | |- | ||
| Family code || | | Family code || <code>9425</code> (intake manifold) | ||
|- | |- | ||
| Suffix || | | Suffix || <code>DA</code> (4V revision) | ||
|- | |- | ||
| Prefix || Obscured — partially read, ambiguous | | Prefix || Obscured — partially read, ambiguous | ||
| Line 53: | Line 56: | ||
Supporting evidence: | Supporting evidence: | ||
* Cast-style mixer mount with no obvious aftermarket plate | * Cast-style mixer mount with no obvious aftermarket plate | ||
* DSO special order tag ( | * DSO special order tag (<code>DSO 74 / SO 3152</code>) on firewall | ||
* Factory fleet options: built-in traction sanders, front tow hooks | * Factory fleet options: built-in traction sanders, front tow hooks | ||
Revision as of 16:07, 29 October 2026
Original Bus Specifications
TAG #1
- MFD. BY CARPENTER BODY WORKS, INC. : 3-88
- INC. VEH. MFD. BY: FORD 10-87
- G.V.W.R. : 28000 LBS.
- G.A.W.R. FRONT : 9000 with 265/75Rx225G tires 22.5x7.5 rims, 120 psi cold SINGLE
- G.A.W.R. REAR : 19220 with 265/75Rx225G tires 22.5x7.5 rims, 110 psi cold DUAL
- VIN: 1FDXB70K4JVA01204
- 1988 Ford B-series chassis cab, 429, built at KTP.
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 | Obscured — partially read, ambiguous |
| Location | Top surface, rear of carb pad |
| Status | 4V confirmed; prefix to be re-read at teardown |
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.