Can’t say for certain with EFi as I’ve not done one but all the carbed V8s I’ve done the rocker covers need to come off the remove the inlet manifold.


Use a composite valley gasket with a very light smear of welseal. Getting all the bolts back in takes care, it’s very easy to get them crossed.

At 40k you may want to consider a cam swap (the cam wears very rapidly on these engines) and you’re halfway there. Inspect it anyway and decide. The engine will respond very well to a slightly hotter cam and new followers. But you will have to shim the pedestals to set the preload.

You should be able to do all the above for about £500 in parts. It’ll take a couple of working days and reward you with about 20bhp more than standard and compensate for the lost 20-30bhp for a worn camshaft. So a real works gain of around 50bhp.

2012 Plus 4 in Sport Green. Much comfier than the Plus 8!