368or388 spring???????? In the middle of spring swap
11-24-2008, 07:08 PM
#1
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368or388 spring???????? In the middle of spring swap
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
11-24-2008, 07:15 PM
#2
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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.
11-24-2008, 07:43 PM
#4
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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
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
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