I'm looking for a new set of valve springs that need to be 1.50 to 1.56 O.D. installed at around 1.950 installed hieght that I can get 680 + lbs open pressure with .730 net lift
I'm using a set of T&D rockers and can not use the 1.625 O.D. springs on that set I called and ordered a set of the PAC 1225 dual valve springs for my motor direct from PAC Very easy to deal with THANKS TO ALL OF YOU FOR THE HELP. The 527 will run again and hopefully make power at a higher RPM These springs call for a installed hieght of 2.00 with 250 lbs seat pressure they show 765 lbs open pressure at 1.200 or .800 lift. I will play around with the install hieght and the coil bind distance to get the most pressures I can. I'm shooting for .060 to .080 from coil bind on the open hieghts. My current installed hieght is 1.960 to 1.980 with the Comp Tititanium 10 degree retainers, I'm hoping they will work if not I guess it is time to buy the correct ones I'm also planning on replacing the 3/8x.120 wall pushrods with some thicker, stiffer ones