LT4 springs
#17
Some guys set all the springs at the same height, which uses the shims because the valves do not all stick up the same amount, especially on reworked heads. This a good baseline but it doesn't guarantee that all the springs will have the same pressure. To acheive that, you have to test each spring individually on a load cell and see what height they make the desired spring pressure, then shim them to that height assuming your clearances are all OK.
But, if I were you, I'd just stick them in at the correct height and you'll be fine. The 1.6rrs + LT4 springs is a GOOD upgrade over stock, especially on an older car with worn out springs.
#18
Thank you I appriciate the info from you and everyone else. This was just a little project to get me started on this car, i was putting new lifters in it and I figured why not put some money in it while I was doing it. It has an AC Delco Reman Short block in it that is suppose to have about 25,000 miles on it. It seems like a pretty strong engine but in the future I wanna drop the engine and rebuild it and add some LE heads and Cam but that's a little farther down the road. It's my daily driver so that's a problem as I'm forced to run my 8mpg dually truck everyday, which happens to be a ford
#19
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