View Full Version : Quick question

04-21-2010, 01:20 PM
What is the base circle of a magic stic 4
What is base cirlcle of stock

I have the ls7 lifter and keep reading the cup height is higher on them compared to stock!
I was wondering if i should swap out the 7.425 for a set of 7.350 !
I know I should measure , but just wanted your opinion on this !

Also need to order valve guide seals for a ls6 stg 2.5 head from tsp what is the size and best on to go with!