BB cylinder heads spring seat machining

[DBR/T]

Ive got a set of 915's that I'm swapping springs on due to a cam change.  My problem is that when I measure my installed height, I have .035" less than I need.  Will it hurt to take my spring seat cutter and cut them .035" deeper?  I definetly dont want to hit water and ruin my heads, but .035" is not very much, there is surely alot more material there.  Any wisdom in this matter would be very appreciated.     Thanks,  Dale

[oldkimmer]

...........U can get different retainers to change the height............kim............

[Rayzor]

How did you lose that much installed height? Did you have hardened seats installed in the heads or aftermarket valves? If it was hardened seats, they may have cut the seat to narrow and have your valve sitting to high in the chamber.

[Challenger340]

You can also go to + .050" Valve Locks to Increase Spring Installed ht.