Max lift on stock guides and seals?

So, do you mean guide/ seal diameter against the coil?
No - I meant issues with coil bind as opposed to retainer to guide - sorry if I confused.

The coils are round w/flat damper inner that is short, so the damper isn't near the retainer or floor. They clear stock seals.
Yes - those are single springs.


You might have an issue with the 360s exhaust valves - they may have the lock groove lower than the intakes if the engine had the rotators on the exh valves. I know the 901-16s on my truck have a slightly heavier seat presssure than the intakes becasue of that. I removed the rotators but the lower groove remains. It's no issue - the cam is small - but it's something to watch for if you're not replacing the valves.