Hi,
does anybody know if X100 XKR supercherger intake manifolds are the same between 4.0L and 4.2L?

4.0L ref are AJ81444 and AJ81445.
4.2L re are 3W83-9424-AC and 3W83-9424-BC.

They look identical but.... hum... sometimes....

Thx

 

Are you typing about the heat exchangers (intercoolers)??
I have a set of EACH (4.0 and 4.2) in my shop somewhere in boxes.They look the same to me but I never measured or matched them up.

The lower manifolds (injector mount assys) are absolutely different!!

bob

 

As motorcarman says, the lower manifold is different and thusly the runners that mate to them are also spaced differently. So even though they look very similar, the intake bits are all specific to the 4.0 or 4.2, gaskets included.

 

Yeap, manifolds look like these

SUPERCHARGED INDUCTION MANIFOLD / CHARGE AIR COOLER RH - Jaguar XJR XKR 4.0 V8 | eBay