whats the deal, is the stock spring a 368, the one I'm pulling out of my truck looks to be numbered up with pink 368 or 388... Is this normal, or is this some super trick spring I should leave in..lol

 

That's the stocker. It's amazing to me that the paint/ink is still on there after all those years and miles, but every spring I've ever pulled has still had a legible marking.

 

thank you sir... thought it was some super spring or something..lol.. I will continue on!!

 

Here are the part numbers and different rpm defuel specs for some springs.

1-464-650-386 spring = 2800rpm spring Stock
1-464-650-366 spring = 3200rpm spring Best Over All Mod
1-464-650-374 spring = 3800rpm spring May need to trim to Stock Length need 60 lbs valve springs
1-464-650-354 srping = 4200rpm spring *May need to trim to Stock Length need 60 lbs valve springs

 

Thanks guys... got it all done..we'll see if it runs tomorrow...lol