TR6 TR6 Cam Grinds

[KSIS]

Anyone know the difference between the early and late model cam grinds for TR6? looks like I need a new cam as number four lobe is wiped out in my spare motor.
The block is a late 76.

 

[DNK]

Ted's pretty knowledgeable
Ted's Specs

 

[poolboy]

Yes,I just explored this. Beginning in 73 the stock TR6 cam was changed to a slightly more agressive stock cam. It is the same cam that was found in the later Fuel Injection engines, sometimes referred to as the 125 HP cam/engine.
Here you can see the difference in the grind.
https://www.hottr6.com/triumph/tr6cams.html

 

[DNK]

I did not know this Ken, good stuff

 

[swift6]

It was an attempt to make up for the plummeting compression ratio.

 

[KSIS]

Odd,
If that is true, the more aggressive cam is cheaper with the big three.

 

[poolboy]

If what is true ?

 

[tomshobby]

Anyone know the difference between the early and late model cam grinds for TR6? looks like I need a new cam as number four lobe is wiped out in my spare motor.
The block is a late 76.

Interesting, the cam in my '76 had to be replaced several years ago because it had 3 flat lobes.

 

[KSIS]

If the later cams are more aggressive they are cheaper in price from the top three.

 

[poolboy]

This is where I bought mine back in December. Got my tappets there, too.

https://www.bpnorthwest.com/.sc/ms/...e Components/7621/Camshaft TR250-TR6, GT6 NEW