Request a Quote Replacement Head Model * Replacement Head 4.7 Litre Kit 4.2 Litre Kit 3.8 Litre Kit Induction Option * please select an option SU Carb Weber Carb SU EFI Weber EFI XK/XJ EFI Pre-Induction Option * please select an option SU Carb Pre-Induction Kit Weber Carb Pre-Induction Kit SU EFI Pre-Induction Kit XK/XJ Pre-Induction Kit Stroke 3.8 Litre Kit? How do you want to stroke your 3.8 Litre Kit to 4.1 Litres? Standard Billet Steel Crankshaft Kit Billet Steel Stroker Kit. Stroke 4.2 Litre Kit? Do you want to stroke your 4.2 Litre Kit to 4.7 Litres? Yes No Accessory Options Check the accessory you want to add. Main Serpentine Belt System Main A/C Serpentine Belt System P/S Pump Accessory Belt System Clutch/Flywheel Package Do you want a Clutch/Flywheel Package? Yes No 5-Speed Gearbox Do you want a 5-Speed Gearbox? Yes No Thank you!