pb camshaft in a 2litre agg

[s25 glf]

hi guys, read with interest the 8valve cam thread and searched on here quite a bit but can anybody confirm if the cam from a mk2 gti pb engine will fit in a 97 mk3 gti agg engine code and if there is much of a benefit? Thanks in advance, stu

[Wayne]

Yes I think it will but I don't believe it will gain you anything.

[s25 glf]

hmmm, was under the impression the pb cam had a longer duration and free up 5-10 horsepower. Cheers for the reply

[VW BUSH]

Running one in mine and I must say it makes a difference.
Not been on a RR to confirm bhp but my 8v is quite lively

Some Mk2 cams have only three bearings, the fourth would need to be ground down to fit.
Not sure what engine code this is but I have both types, all the tat knocking around in the garage gets confusing sometimes

[AlexMozza]

Sorry to thread jack, but how much can you pick one up for :O

[Wayne]

Running one in mine and I must say it makes a difference.
Not been on a RR to confirm bhp but my 8v is quite lively

Some Mk2 cams have only three bearings, the fourth would need to be ground down to fit.

Not quite right, all non hydraulic cam are 5 bearing, hydraulic is 4 bearing and the unused bearing face on the cam will need machining to work.

[s25 glf]

cheers vw bush, was hoping somebody that had done this mod would reply. Did you manage to get the right cam from the mk2 or do they all have to be machined? Stu

[Wayne]

cheers vw bush, was hoping somebody that had done this mod would reply. Did you manage to get the right cam from the mk2 or do they all have to be machined? Stu

All PB cams will need to be machined a non hyd cam will not work.

Will be interesting to see if you have any problems with it afterwards as it will not be case hardened so might not last long.

Still cannot see the cam giving you 5 to 10 bhp btw.

[rubjonny]

hmm, so the mk3 head has 5 bearing caps? learn summat new every day

[MotorPsycho]

IIRC it has a sligntly longer duration so will breathe a little better, but at the risk of damaging your cat and having higher emissions come MOT time