Installed height!

[BigChinooks]

I just bought some used m&a heads and need different springs.
What is the proper installed height for these heads?
I am going to a hyd roller and need that info so i can get the proper springs.

Thanks

 

[STP]

Depends on valve length and desired seat/open pressures.

 

[KendallF]

It is probably somewhere around 1.700"...but if the spring pockets have been machined, it could be quite a bit different. Your best bet is just to measure them and not guess.

 

[BigChinooks]

There must be a common installed height for the m&a heads.
I figured 1.8 ins height being that the valves are longer then a stock head and previous springs were taller as well.
I had the info written down but lost it!