Engine Family:
300 CID inline-six (4.9 L)
Model Variant:
300 CID gasoline engine, industrial and automotive applications
Production Years:
1965-1996 (light truck and industrial use; 4.9 L designation through 1996)
Displacement:
300 cubic inches (4.9 liters)
Engine Configuration:
Inline-6, overhead valve, pushrod
Firing Order:
1-5-3-6-2-4
Vehicle Applications:
Ford F-Series trucks, E-Series vans, and various industrial equipment
Manual Type:
Parts manual for the 300 CID gasoline engine
Target Audience:
Technicians, mechanics, and DIY owners servicing Ford 300 CID engines
Market Position:
Comprehensive parts reference for one of Ford's most durable and widely used inline-six engines
Key Advantage:
Detailed exploded diagrams and part numbers for accurate identification and ordering
Key Features:
Covers internal and external components, fasteners, gaskets, and accessories
Primary Use:
Parts identification, ordering, and assembly reference during rebuild or repair
Coverage Areas:
Complete engine assembly including cylinder block, cylinder head, valve train, timing gears, oil pump, manifolds, and carburetor
Page Count:
Approximately 200-300 pages (varies by edition)
Manual Type:
Parts manual (illustrated parts catalog)
Delivery Method:
Instant download
System Requirements:
PDF reader (e.g., Adobe Acrobat)
Cylinder Block Assembly:
Block, main caps, main bearings, freeze plugs, dowels
Cylinder Head Assembly:
Head casting, valves, springs, guides, seats, rocker arms
Valve Train:
Camshaft, lifters, pushrods, rocker arm studs, valve cover
Timing Components:
Timing gears, timing chain (if applicable), timing cover, gaskets
Oil System:
Oil pump, pickup tube, oil pan, dipstick, oil filter adapter
Cooling System:
Water pump, thermostat housing, fan, fan clutch, belts
Fuel System:
Fuel pump, carburetor, fuel lines, filters, intake manifold
Exhaust System:
Exhaust manifold, heat riser, gaskets, studs
Ignition System:
Distributor, spark plugs, wires, coil
Electrical:
Alternator, starter, wiring harness, sensors
Emission Control:
PCV, EGR, air injection (if equipped)
Part Identification:
Exploded diagrams with part numbers and descriptions
Assembly Sequences:
Torque specifications and assembly order for major components
Disassembly Guidance:
Step-by-step removal of engine components
Inspection Criteria:
Wear limits and tolerances for reusable parts
Replacement Instructions:
Procedures for installing new parts and gaskets
Adjustment Specifications:
Valve lash, ignition timing, carburetor settings
Detail Level:
OEM-level part numbers and illustrations
Diagrams:
Exploded views for every major assembly
Part Numbers:
Ford part numbers with supersession information where available
Specifications:
Torque values, clearances, and capacities
Gaskets and Seals:
Complete listing for all engine seals and gaskets
Fasteners:
Bolts, nuts, studs, and washers with sizes and part numbers
Bearings:
Main, rod, and cam bearings with undersize options
Pistons and Rings:
Standard and oversize pistons, ring sets
Valve Train Parts:
Valves, springs, retainers, keepers
Accessories:
Brackets, pulleys, spacers, and mounting hardware
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Primary Engine:
300 CID (4.9 L) inline-6 gasoline
Bore x Stroke:
4.00 in x 3.98 in (101.6 mm x 101.1 mm)
Compression Ratio:
8.0:1 to 8.9:1 depending on year and application
Horsepower:
110-150 hp (82-112 kW) depending on year and tuning
Torque:
223-265 lb-ft (302-359 Nm) depending on year and tuning
Fuel System:
Carbureted (1-barrel or 2-barrel) until 1987; electronic fuel injection (EFI) 1987-1996
Valve Train:
OHV, hydraulic lifters, gear-driven camshaft
Engine Oil Capacity:
5-6 quarts (4.7-5.7 L) with filter
Coolant Capacity:
Approximately 13-15 quarts (12.3-14.2 L) depending on radiator
Oil Change:
Every 3,000-5,000 miles (4,800-8,000 km) or 3-6 months
Spark Plugs:
Every 30,000 miles (48,000 km) or 2 years
Air Filter:
Every 15,000-30,000 miles (24,000-48,000 km) depending on conditions
Fuel Filter:
Every 15,000-30,000 miles (24,000-48,000 km) or annually
Coolant Flush:
Every 30,000 miles (48,000 km) or 2 years
Valve Adjustment:
Every 30,000 miles (48,000 km) for solid lifter engines; hydraulic lifters generally not adjustable
Engine Oil:
10W-30 or 10W-40 API SF or higher (conventional or high-mileage)
Coolant:
50/50 mix of ethylene glycol antifreeze and water
Power Steering Fluid:
N/A - engine not equipped with power steering pump (separate system)
Brake Fluid:
N/A - engine not equipped with brake system
Oil Pan Gasket Leaks:
Common due to age and heat cycles; replace with quality gasket
Timing Gear Wear:
Gear-driven camshaft can wear; inspect for noise and play
Exhaust Manifold Cracks:
Heat cycling can cause cracks; inspect for leaks
Valve Cover Leaks:
Gasket becomes brittle over time; replace as needed
Carburetor Wear:
Throttle shaft bushings wear; rebuild or replace carburetor
Freeze Plug Corrosion:
Core plugs may corrode and leak; replace with brass plugs
Manufacturer:
Ford Motor Company
Engine Introduction:
1965 (as a replacement for the 262 CID inline-six)
Engine Discontinuation:
1996 (last year for the 4.9 L in light trucks)
Production Location:
Various Ford engine plants including Cleveland, Ohio and Windsor, Ontario
Model Evolution:
Remained largely unchanged in design; upgrades included electronic fuel injection (1987) and improved emissions controls
Legacy:
Known for exceptional durability and torque, often exceeding 300,000 miles in service