Jaguar XK6 Engine - Cylinder Head Types

Cylinder Head Types

The following table relates XK cylinder head type to Jaguar/Daimler model and includes the paint colours applied to certain versions of the cylinder head in the 1950s and 60s. Unpainted heads are sometimes referred to as “silver” but this is merely the natural colour of the aluminium alloy.

“A” head Mark VII 3.4
Mark VII M 3.4
XK 120 3.4
XK 120 SE 3.4
XK 120 M 3.4
XK 140 3.4
XK 140 SE 3.4
XK 140 M 3.4
“B” head Mark VIII 3.4 (painted light blue-green)
Mark IX 3.8 (painted dark blue metallic)
XK 150 3.4 (painted light blue-green)
XK 150 3.4 S (painted orange)
XK 150 3.8 (painted dark blue metallic)
Prototype E1A 2.4
2.4-litre 'Mark 1'
3.4-litre 'Mark 1' (painted light blue-green)
2.4-litre 'Mark 2'
3.4-litre 'Mark 2' (painted light blue-green)
3.8-litre 'Mark 2' (painted dark blue metallic)
340 'Mark 2'
S-Type 3.4 (painted light blue-green)
S-Type 3.8 (painted dark blue metallic)
“Wide Angle" head D-Type 3.4 (from 1955)
XK-SS 3.4
Prototype E2A 3.0
“C” head Mark VII 3.4 (as option from April 1953)
Mark VII M 3.4 (as option)
XK 120 C 3.4
XK 120 SE 3.4 (as option from April 1954)
XK 120 M 3.4 (as option from April 1954)
XK 140 SE 3.4 (as option) (painted red)
XK 140 M 3.4 (as option) (painted red)
“Straight port” head XK 150 3.8 S (painted orange)
240 Mark 2
420
Daimler Sovereign (420)
E-Type 'Series 1' 3.8 (painted orange then later gold)
E-Type Lightweight 3.0
E-Type 4.2 (painted gold)
E-Type Series 2 4.2
Mark X 3.8 and 4.2 (painted gold)
420G (unpainted)
Daimler DS 420
XJ6 2.8 and 4.2 Series 1
Daimler Sovereign 2.8 and 4.2 (Series 1)
XJ6 2.8 and 4.2 Series 2
Daimler Sovereign 4.2 (Series 2)
XJ6 Coupe 4.2
Daimler Sovereign Two-Door
XJ 3.4 Series 2
Daimler Sovereign 3.4 (Series 2)
XJ6 L 4.2 Series 2
Daimler VDP 4.2 Series 2
XJ6 Series 3 3.4 and 4.2
Daimler Sovereign and VDP Series 3

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