I am looking at two valve springs for a possible upcoming cam swap. This will be for a solid flat tappet that will max out around the 6300rpm range with 1.65 rockers.
Note: I have been told in the past that the 1.65 rockers will need a little more spring pressure versus the 1.5 rockers.
The two springs that I am looking at are the Isky 6105 and the 6105SP (SP = Hi-Tensile chrome silicon outer spring, Spintron proven up to 8000rpms).
Question 1: Is the 6105 spring a good spring choice up...
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Note: I have been told in the past that the 1.65 rockers will need a little more spring pressure versus the 1.5 rockers.
The two springs that I am looking at are the Isky 6105 and the 6105SP (SP = Hi-Tensile chrome silicon outer spring, Spintron proven up to 8000rpms).
Question 1: Is the 6105 spring a good spring choice up...
Read more
