Stroker Performance Review
The PAC specs for the 1903 from their catalog are:
[email protected]/[email protected], 391lbs/in.
In their load chart, they show [email protected], [email protected], [email protected].
I have installed tons of these springs.
My obsevered spring loads agree with the catalog....... basically [email protected], which is where I usually set them up for fast rate SFT cams.
I have a set of new TFS-16893’s that came off some PP240 heads.
I just checked one....... [email protected]
The specs that come in the paperwork supplied with the TF heads don’t agree with the specs on the TF site in the valve spring section(where the specs for the 16893 are exactly the same as what PAC shows for the 1903).
The PAC specs for the 1903 from their catalog are:
[email protected]/[email protected], 391lbs/in.
In their load chart, they show [email protected], [email protected], [email protected].
I have installed tons of these springs.
My obsevered spring loads agree with the catalog....... basically [email protected], which is where I usually set them up for fast rate SFT cams.
I have a set of new TFS-16893’s that came off some PP240 heads.
I just checked one....... [email protected]
The specs that come in the paperwork supplied with the TF heads don’t agree with the specs on the TF site in the valve spring section(where the specs for the 16893 are exactly the same as what PAC shows for the 1903).
