hey yall..just a few quick questions...im about to purchase a cam "package" from someone and it comes with isky springs...i have done a few searches but with limited things comming back and i called MTI and they told me they havent heard of anyone running them for a while....im getting a great deal from a guy that has awesome trader feedback...what is everyones experiences with them?

 

The "Toolroom" springs are generally pretty good. What is the part number? Are they beehive springs? The Isky Toolroom beehive springs are PSI 1511's, which are good springs.

 

I run Isky 6105 chrome silicon springs on my SBC marine engine builds with great success. They are top of the line and I would not hesitate to use them. For ex... on the last one I did we ran 150lbs on the seat shimmed to .060" before coilbind. After 136 high rpm hours they had only dropped 1-2 psi per spring. These springs saw WOT rpms for 5-10 min periods straight during poker runs.

 

thanks for the reply...sounds like they are pretty decent springs...all i know is they are LS1 dual springs...it comes as a kit with the retainers, locks, and seats....im going to check for the part number