Originally Posted by SIXPACKGUT
Go to www.racingsprings.com and click the catalog tab, drop down to valve spring catalog. It has our full 2011 catalog right in PDF form. The R311 has an O.D. of 1.035" and the locator O.D. is .640". This is quite a bit larger than your your retainer so you will need wither these or you can go with the R333-R633(tool steel) which has an O.D. of .875" and a locator O.D. of .640"
The 1219 I.D. at the top is .650" The I.D at the bottom is .885" which sould locate on your boss no problem. As I told you yesterday the locks is the only trick thing. There are very few companies who do trippple grove locks. I know of only one who does a mustang tripple grove but they use a 7mm stem.
Any other questions feel free to give me a call anytime 866-799-9417 ask for me (I'll probably answer anyways).
Matt, thank you for your help and info. i will be calling you