Saw this outfit used a Range Rover block to up it to 4.4... Easy to do?

"'BADCAT' 4.4 LITRE ENGINES
We will build you a 4.4 litre exchange short engine with brand new Block, reprofiled high lift Cams for more efficient induction. Uprated Cam Followers, ported and polished Cylinder Heads, bespoke designed Pistons made by Mahle USA to accommodate higher lifting valves.

The Badcat Engine is able to produce 500+ fwhp / 650+Nm torque still using Jaguars’ Eaton supercharger with uprated pulleys and o..."

 

There is another forum member on a quest to build a beast of an AJ34. Might be someone to talk to about the details if you're thinking to start a rebuild project.

https://www.jaguarforums.com/forum/s...-109550/page2/

 

Easy = yes if you spend a lot of $$$

 

It sounds more like a nasty kitten too me ;-)

Don’t know the total costs of that conversion, but with what’s listed I would guess in the $$.$$$ range, which is a lot of doh for the relative small gains imho, but you may call me biased ;-)

A bigger engine was always on my list to do as well, and exactly one year ago I started with my 4.8 ltr project which is actually just finished. Have no idea how it will work out with the choices I have made (budget constraints…), but have clocked so far 2Kmiles and will gradually up the power to see how far I can get.

 

Please let me know, because I'm nearly ready to upgrade my super v8 and wanted to combine your TS kit with a bigger engine

 

Indeed super interesting!!!!
Same here, also want to built up a 4.8+ engine.
Block, Heads etc are still here, but i can't decide which way to go with the sleeves.... and that's an annoying point!