Thread: school me on valvesprings

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the LT -1z-28 is one spring for mild use 120@1.700 300@1.250 cb 1.160 there some things over looked here mass weight come s in to play as well . and if stock parts the set up should come in at 1.700 or 1.750 so you would look at installed set up height. as what spring to use for what rpm s . you may want to buy some good pushrods . for what your doing. i use the spring i listed . they can be had for $30. a set thru comp products in a kit form as well . you could pin rocker studs or get screw in studs or what ever way you go but Dorman made a stud that was 3/8 by 7/16 that did not need to be milled for the stud towers when this is done . but i got away with out screw in studs thats up to you but in time you have chance of one pulling .pining them is a fast way to fix this and Ez to do the screw in studs are not hard to do but eats up alot of time=$$ . i have seen guys screw the up doing them so find some one that can do the job if not then pin them your self this take less time and money and if you do not have alot of tools you can do this job at home EZ . i changed my mind on pinning studs after hearing about guys screwing up good heads trying to do screw in studs . when i do a set of heads i also drill out the push rod guids and then use guid plates so i spot face the stud tower down and you need a hard face push rod to run on the guid stock ones will not work