[Jay S]

Mopar performance quit making them quite a few years ago. Mr Gasket makes a couple, parts stores usually can get them next day.

987G is a 2*, 988G is a 4*

https://www.summitracing.com/parts/mrg-987g

[Singleton]

Originally Posted by Jay S

Mopar performance quit making them quite a few years ago. Mr Gasket makes a couple, parts stores usually can get them next day.

987G is a 2*, 988G is a 4*

The problem with these is that the 987G (and the Mercedes key) is a 2 degree offset cam key, which moves the degree wheel on the crank 4 degrees. (the 988G moves it a whopping 8 degrees).

So if looking for fine adjustment changes while degreeing the cam, (less then 3 degrees), these offset keys are lacking. The discontinued Mopar set had a 1 degree offset key that would allow for a 2 degree change.

[Scott Stoneburg]

Originally Posted by Singleton

The problem with these is that the 987G (and the Mercedes key) is a 2 degree offset cam key, which moves the degree wheel on the crank 4 degrees. (the 988G moves it a whopping 8 degrees).

So if looking for fine adjustment changes while degreeing the cam, (less then 3 degrees), these offset keys are lacking. The discontinued Mopar set had a 1 degree offset key that would allow for a 2 degree change.

I. Bought the Mr Gasket set assuming I could, if need be use them along with the 9 keyway crank socket to dial in the degree. . adv. or ret. The cam using the lower gear, and use the offset key to work the other way depending on how it turns out. Just because the keyway says its 6* it may work out to 5 * or 7*. Luckily mine came out close enough using just the bottom sprocket.