Help me build my head!!

This is the place to ask questions about your engine components like cams, valves, pistons? just anything that is generally "engine" specific.
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blue_streak_95
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Help me build my head!!

Post by blue_streak_95 » Sun Feb 07, 2010 9:20 pm

OK SO HERE IS WHAT IM DOING!
-Crower springs and retainers
-Crower stage 3 cams
-new stock valves
-PT lash adjusters and followers
-AMM street PnP

my question is this!

How much should i get my head milled?

Also how much shud i get my STOCK block millled if required?
95 Neon Sport- DOHC, MTX, Project car in progress

01 Neon LE- SOHC, MTX, Daily driver with minor mods.

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DOHCRT
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Post by DOHCRT » Mon Feb 08, 2010 12:33 am

How much you mill from the head depends on what compression ratio you need. This factors in with what pistons you will be using. If you need to deck the block, take the minimum amount required off.

I would also recommend using the 2.7L followers over the 2.4L ones.
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sabu
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Re: Help me build my head!!

Post by sabu » Mon Feb 08, 2010 12:46 am

blue_streak_95 wrote:Crower springs and retainers
I strongly urge you to use Crane. You will be happy when your springs don't fail on you!

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Re: Help me build my head!!

Post by roysneon » Mon Feb 08, 2010 7:57 am

sabu wrote:
blue_streak_95 wrote:Crower springs and retainers
I strongly urge you to use Crane. You will be happy when your springs don't fail on you!


The guy I bought my cams from broke two Crane springs with 16's. Crower springs are known to be more reliable than Crane, especially when using larger cams.
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Post by sabu » Mon Feb 08, 2010 12:32 pm

Usually I agree with you, but there is enough evidence I have seen first hand to never touch another Crower spring.

My Crane springs are over 5 years old now which have been run with Crane 16's their whole life. Have yet to have a single problem.

I doubt you have heard of him, but Ed Peters has run countless tests on DOHC and SOHC valve springs. The DOHC Crower springs lost 20% of tension after 1 hour of testing. The Crane springs showed less than 3% loss.

Food for thought. :)
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Post by roysneon » Mon Feb 08, 2010 5:24 pm

Of course I've heard of Ed Peters. My Crowers are going fine with my 16's, and I'll continue to use them, but I'd really like to see these tests. I have no problem being proven wrong.
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Post by DOHCRT » Mon Feb 08, 2010 11:27 pm

Its the Crane DOHC springs that are weak and prone to failure. Crower springs have proven to be much better than Crane.
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Post by sabu » Tue Feb 09, 2010 12:05 am

Many conflicting opinions. Do as you wish though. Everyone has luck with different brands.
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Post by McNeon » Wed Feb 10, 2010 10:33 pm

My Crane springs have lasted 25K miles with the #16 cams. The Mopar Perfromance springs lasted about 5K miles before an exhaust spring broke.
Last edited by McNeon on Thu Feb 11, 2010 9:14 pm, edited 1 time in total.

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Post by DOHCRT » Thu Feb 11, 2010 5:26 pm

Some people have better luck than others. Maybe it was a bad production run on some springs. It seems to be most prevalent with the larger cams (22 and up), so I wouldn't be to worried with small cams like 16's.
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Post by 98moparR/T » Thu Feb 11, 2010 6:46 pm

crower > crane
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Post by blue_streak_95 » Wed Feb 17, 2010 12:40 am

so i have been hearing that milling your head down.040 fucks with your timing....is this abig deal if so what is needed to correct it? just want to get this all cleared up b 4 i go through with this work. cuz if its a major fix that requires more extream amount of cash then lol i think ill just get it milled enough to make a good solid seal...
95 Neon Sport- DOHC, MTX, Project car in progress

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Post by DOHCRT » Thu Feb 18, 2010 5:59 pm

Milling the head or deck any amount is going to affect cam timing. You can correct this with adjustable cam gears if you need to.
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