Rocker arm ratio

[monkeyy337]

What is the rocker arm ratio on a 231 Buick V6 motor? I bought some roller ones last night and they are 1.55 so was wondering what the stock ones are. Thanks

 

[m233roller]

1:55 is stock ratio

 

[gossamer]

1.55 is stock. They also make roller rockers in 1.65 which would give you about another .030 valve lift.

 

[monkeyy337]

I was hoping they were more than stock to get some more lift but I only gave $199.00 plus $15.00 shipping so if nothing else they will be some what easier on the valve train. Thanks for the replys though.

 

[V6gofast]

What is the rocker arm ratio on a 231 Buick V6 motor? I bought some roller ones last night and they are 1.55 so was wondering what the stock ones are. Thanks

Actually if you caculated the valve lift with a stock rocker you would find
they come in around 1.47-1.48 . So going to a true 1.55 would be an
advantage.

 

[jasjamz]

Any down sides for going to the 1.65 performance wise Dan? How much of an improvement do you see on the average.