Aston Martin 4-Litre Engine
From the original DB4 to the DB6, with road, fast road and race specifications available up to 4.7 litres.
The Aston Martin 4-Litre Engine
In 1958 Aston Martin needed a replacement for the DBA 3.0-litre engine, and Tadek Marek, a Polish-born racing driver turned engineer, was again given the brief. He designed a double overhead cam straight-six with cylinder head and block cast in R.R.50 aluminium alloy, a further development of the earlier Lagonda straight-six.
Fitted to the newly introduced DB4, it carried dual SU carburettors and produced 240 bhp. A Special Series car was later introduced and saw the first fitment of triple SU carburettors on this engine type. In 1959 the short-wheelbase DB4GT featured a twin-plug cylinder head, special camshafts and dual ignition, pushing output to 304 bhp.
DB5 & DB5 Vantage
By 1963 the capacity had grown to 4.0 litres producing 282 bhp, fitted to the newly launched DB5. In 1964 the introduction of Weber carburettors and a revised camshaft profile gave an alleged output of 325 bhp in the DB5 Vantage.
DB6 and End of Production
The 4-litre engine was carried over into the DB6 and remained in production until January 1971, by which time the V8 5.3-litre had already been in production for two years.
These engines can now be restored to standard specification, fast road tune, 4.5-litre specification for lightweight race cars, or a 4.7-litre stroked build for ultimate fast road use.
Aston Martin 4-Litre Parts
John holds a stock of original and hard-to-find Aston Martin 4-litre parts. Browse the current catalogue or get in touch directly if you're looking for something specific.
Please contact John for any Aston Martin 4-litre engine requirements.