stock PR is 7.38

 

am i too late .. wooow to much replies .. thanks falks but this issue is not done yet .. after reading all what is written i talked 2 Chris the sales man there and he said go with stock length !! am ok with that since 563 lift is more than enough for my applications man i cant wait .. the shipment gana cross 2 continentals before it reach home and am afraid of bad handling i dont want a tiny crack on my cam cause am ganna install it anyway even if i receive it as 2 halfs

One more thing .. i have the Hptuner and i need great help to tune the cam plz send me feedback ...........................................waiting ...............

Shokran/thank u

 

It's true, Thunder Racing 7.400 push rods for the TR224 are NOT 7.400. Mine measure 7.412 with my cheap azz Harbor Frieght caliper. This is to compensate for the small base circle, just as stated above by Ryan02SS.

 

I had East Coast Superchargers install the stuff in my sig. I dont shift the car at 6000 rpms so I went with the :
TR224, thunder racing push rods, the 918 comp springs. Ill change them in a couple of years when I do the heads. Then I might think of dual springs when im over 410 RWHP. I used the stock retainers