cam choice

[curryaddict]

Just got my ’93 4.0 back from local indie after a cam to rocker change and surprised to see a V8 4.0 HC cam on invoice.
Can you really just swap the standard cam for the HC without any other alterations ? Seems to drive as before, but thought fuelling would have to be altered to compensate for different valve lift
Anyone come across this before ?

[joospeed]

Did you ask the indie about it? and if so what did they say?

[curryaddict]

apparently it was delivered in error, and were advised by tvr it would run fine as a direct replacement. These guys do seem to know their stuff, but I'm interested in any other views on this

[zzr1200]

If knowledge serves correctly the chip is a standard land/range rover one anyway, which means that the fuelling won't be spot on to start with, might respond well to a chipping session though.

paul

[slikk]

If this is my (our?) local indie, i wouldnt think that there is much to worry about

[ssc1]

so what is the real difference between the 4.0 and the hc, is it just the cam or is it ported heads as well.

[curryaddict]

The question is really, should the "better" cam make any difference without other mods, or could it even drop performance if changed on its own.