Im doing a whole head overhaul i already have new Ireland Engineering HD rockers new head bolts new cam and new gaskets. Are the springs and valves themselves a "must replace" or am i fine just cleaning up the old ones?
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Replacing the springs is wise when you do a head overhaul. Why spend 300.00 on rockers to leave the stock worn springs?
Is this a b25 engine? 87-92 325i.~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~
Instagram: @BWeissLeather
Current cars:
~ '87 325 M30B35 swap
~ '87 535
~ 01 540 Msport 6spd
~ '06 X5 4.8is
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Originally posted by -bimmerboy- View PostOkay. Wow looks like i'm ordering new valve springs. Haha that definitely changed my mind thanks. Any reccomendations?Originally posted by monsterm20 View PostVAC motorsports seems to be common. from what ive read they have great qua;ity
Order everything through www.blunttech.com, best prices around and I believe over 75.00 is free shipping. New springs will be over that. Make sure you do timing belt/ten and WP.Last edited by F34R; 01-25-2013, 12:47 AM.~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~
Instagram: @BWeissLeather
Current cars:
~ '87 325 M30B35 swap
~ '87 535
~ 01 540 Msport 6spd
~ '06 X5 4.8is
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Originally posted by MR 325 View PostUsed springs ARE fine if they're tested and have consistent specs.
This!! dont waste money if you dont have to. I tested the springs from a 87i head and they were on the money. There are specs, google it. I think its 68lbs at 1.4 inches and 164 at 1 inche. But you obviously need the means to test them.Now with 2.7i power!!!
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new stock springs on a mild cam
good used on stock cam
new upgraded ones for a performance cam89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Originally posted by AlphaE View PostThis!! dont waste money if you dont have to. I tested the springs from a 87i head and they were on the money. There are specs, google it. I think its 68lbs at 1.4 inches and 164 at 1 inche. But you obviously need the means to test them.
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