Can anyone on here tell me the internal engine model code for the 4.6?
(S54, BHF, M167 etc.)

 

I've never really heard of such a thing. I've only heard it referred to as a Rover V8.

 

generally there are internal code to designate the engine and engine management associated with each platform and to differentiate it from other vehicle installations. (when platform sharing has occurred.)

 

Ive heard of people using the serial number to look up the motor on "a" database and find out if it's a 4.6 or not, but never heard of a designated code. Doesn't mean it's not there though.

If you are trying to identify a motor, drop the pan, the crank has 4.0 or 4.6 stamped on it.

 

i know it's a 4.6. no doubt about that but was looking for a code if LR/RR doesn't do this no biggie.

 

The closest thing cI an think of to what you're talking about is GEMS vs Bosch, but thats just for the engine management systems. All 4.6s are Bosch (factory, anyway), but not all Bosch engines are 4.6s; some are 4.0s and the Bosch engines were in both the P38 and the Discovery 2.

I don't believe LR does the designations like you're talking about though.

 

the more i research the more this seems to be the case.

 

if a LR the comp. ratio stamped on the block will be like 9.15 if a RR it will be stamped about a 1/2 point higher closer to 9.75 comp. ratio. if that helps

 

Just out of curiosity, what do you want the build code for?