5.9 stroker build

mopowers said
I'd try the TF springs if they allow for the lift you're at. Looks at the coil bind height and allow for clearance.

Max lift is .680"; .093" greater than the exhaust lobe at 1.6 ratio.

mopowers said
Those 1129 springs are the same ones he specs for his 276/280/.656" HR cam, so you're at the small end for those springs.

They do specify a large range of cams for those lifters. The cam card's open/closed pressure specs are lower than the specs for those springs, which backs up your comment about the being on the smaller side.

mopowers said
If you want more seat pressure, you could always shim the TF springs. Just make sure you're not getting into coil bind territory at open.

How does the installed height play into this? If I shim the TF springs, they'd be even taller than the 1129 springs. Would the difference be taken up in the pushrod length?