DB4 3.7L Standard Engines
from £15,000 to £25,000
Rebuilt units from £15,000 · Common codes: 370/, 370/101, 370/469
Get specialist quotes from UK Aston Martin DB4 classic engine experts. Compare rebuilt & restored 3.7L straight-six engines for DB4 to DB4 GT Zagato. Get specialist quotes for your DB4.
DB4 3.7L Standard Engines
from £15,000 to £25,000
Rebuilt units from £15,000 · Common codes: 370/, 370/101, 370/469
DB4 Vantage /SS Engines
from £25,000 to £40,000
Rebuilt units from £25,000 · Common codes: /SS, /SS/101, DB4/SS
DB4 GT & Zagato Engines
from £40,000 to £75,000
Rebuilt units from £40,000 · Common codes: 400/, GT/0188/L, Z-prefix

Most replacements completed within 3-5 days.


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Not sure which variant your Aston Martin DB4 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.

Every engine code fitted to the Aston Martin DB4 across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across Aston Martin DB4 variants.

/SS - 3.7L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Avg. rebuilt price
£40,000 - £75,000
Supply only
Technical specifications
Common failures
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Aston Martin DB4 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

The Aston Martin DB4's Tadek Marek 3.7L aluminium inline-six is a masterpiece of post-war engineering, but its wet-liner construction and timing chain design create specific failure points. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12-month...
Timing Chain Stretch & Marek Rattle
Most affected vehicles
Aston Martin DB4 Series I-V, Vantage, GT, Zagato (1958-1963, 370/, /SS, 400/)
Failure mileage range
50,000-80,000 miles
Typical failure window
Root cause
Original single-row chain and tensioner design wears under load; aluminium block flex accelerates guide wear.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Chain Service | £3,500 - £5,500 | £2,200 - £3,800 | Chain, guides, tensioner replacement with engine in situ | Viable only before catastrophic failure; 20k-30k mile extension |
| Intermediate - Top-End Refresh | £8,500 - £14,000 | £5,500 - £9,200 | Cylinder head removal, valve train inspection, chain system upgrade | Addresses secondary damage; suitable if block is sound |
| Full Replacement - Rebuilt / Reconditioned Engine | £28,000 - £45,000 | £15,000 - £35,000 | Complete engine rebuild with duplex chain upgrade, bench-tested, warranty included | Definitive solution; restores numbers-matching authenticity where required |
Our recommendation
On a DB4 valued £150,000-£1,000,000+, preventative chain service at 50k miles is essential. If rattle is audible, budget for full replacement - continued driving risks catastrophic block damage.
Compare rebuilt 370/ engine prices for your Aston Martin DB4
Every Aston Martin DB4 engine type is available through our UK network with typical price ranges based on variant, engine code and restoration grade.
Compare Aston Martin DB4 engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Aston Martin DB4 within hours.

Every displacement fitted to the Aston Martin DB4 is listed below, with compatible engine codes, production years and common failure notes to help you identify the correct replacement.
The 3.7-litre Tadek Marek inline-six powered every UK-market DB4 from 1958-1963, evolving through five series with standard, Vantage and GT specifications. Its aluminium block with wet liners defined Aston Martin's post-war engineering, but requires specialist knowledge for authentic rebuilds.
Engine Code(s)
370, SS, 400, GT, 0188, L
Compatible Models (UK)
Series I-V (1958-1963), Vantage (1961-1963), GT (1959-1963), GT Zagato
Power output
Verified by registration
Common Failure Points
Timing chain stretch, alloy block liner corrosion, oil pressure loss on high-mileage units
Production Years: 1960-1963
Compare Aston Martin DB4 3.7L petrol engine prices
Choose your Aston Martin DB4 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from Series I to the ultra-rare GT Zagato.
Every UK-market DB4 was powered by the Tadek Marek 3.7L petrol inline-six, offered in standard, Vantage and GT specifications across five series and rare coachbuilt variants.
Common Aston Martin DB4 Petrol Engine Families
Found In
Known For
Typical Petrol Models
Every UK-market DB4 was powered by the Tadek Marek 3.7L petrol inline-six, offered in standard, Vantage and GT specifications across five series and rare coachbuilt variants.
Common Aston Martin DB4 Petrol Engine Families
Found In
Known For
Typical Petrol Models
Not sure which fuel type your Aston Martin DB4 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Aston Martin DB4 specialists.

This section covers all major engine changes across the DB4's 1958-1963 production timeline, organised so owners can quickly identify their engine and compare rebuilt prices from UK specialists.
⚙Key Changes
▣Main Engines
370/- 3.7L petrol (Series I standard)
▰Popular Models
🔧Known For
Engine Codes Covered:
370/370/101