change in valve spring iinstalled height?

[Grumpy]

=" 64ausbelair"] Hi all.
I was in need of some tech teaching or advice on springs. I have a hydraulic lifter camshaft that suggests springs that have an installed height of 1.7 giving a seat pressure of 105.
I was also looking at a set of trick flow super 23 heads which come assembled with three options. One option and the closest is a spring with an installed height of 1.78 and seat pressure of 110. Will these still work even though the cam suggested springs suggest 1.7? And what is the consequence of a mismatch like this if any.
Cheers in advance Jason.

yes you need to as stated, check clearances carefully but theres almost certainly no cause to be concerned here as the minor difference in spring load rates and installed heights is probably well within the intended valve train and cams design limitations, keep in mind the max cam lift is .520

those heads
https://www.summitracing.com/parts/tfs-30410001/overview/

http://www.summitracing.com/search/...d-length-checkers?autoview=SKU&ibanner=SREPD5
Proform Pushrod Length Checkers 66789 SBC 3/8" rocker studs

Proform Pushrod Length Checkers 66790 SBC 7/16" rocker studs

Proform Pushrod Length Checkers 66806 BBC 7/16" rocker studs

READ THESE LINKS CAREFULLY

http://garage.grumpysperformance.co...e-springs-and-setting-up-the-valve-train.181/

http://garage.grumpysperformance.com/index.php?threads/rocker-push-rod-wear-issues.9815/

http://garage.grumpysperformance.com/index.php?threads/checking-piston-to-valve-clearances.399/

http://garage.grumpysperformance.com/index.php?threads/valve-train-clearances-and-problems.528/