Replacement valve spring advice (please help car in distress)

W

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Yay Area, California

Apr 23, 2009

#1

• Apr 23, 2009

• #1

I am getting recommendation that are all over place. This is for my 1994 cobra which is bone stock. I was gonna replace one, but now I am just gonna replace them all. Here is what I have been presented by jegs, summit and comp cams.

Comp Cams
COMP Cams: 984-975

I was told I would need to buy new keepers and retainers with this. Old ones wont work

Summit
Sealed Power ZVS918 - Sealed Power Valve Springs
The guy really didnt sound like he knew what I needed and wanted to get me off the phone

Jegs
Comp Cams 942-16 - Comp Cams Single Valve Springs
Comp Cams laughed when I told them jegs recommended this spring...lol.


Please oh please if someone has replaced their stock valve springs please chime in. I am keeping my car stock for now with no major power adders planned. I basically need recommendations on on a set to get.

Also on a side note do these cam specs and measurements seem correct?
Cam Duration:
intake 227
exhaust 270

Lift:
exhaust/intake .485

Spring seat diameter 1.430"

Please help

 

W

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Sep 11, 2005

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Yay Area, California

Apr 23, 2009

#2

• Apr 23, 2009

• #2

Also I am never sure if my questions belong in the 5.0 section or sn-95 since my engine is a 5.0. Hopefully this is the right place

 

KamiKaziDK

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May 16, 2005

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Mesa, Az

Apr 23, 2009

#3

• Apr 23, 2009

• #3

Ford racing has replacement springs for like 76 bucks I think

 

W

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Sep 11, 2005

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Apr 23, 2009

#4

• Apr 23, 2009

• #4

Where do you get those? I called Ford and they no longer carry them.

 

KamiKaziDK

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May 16, 2005

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Apr 23, 2009

#5

• Apr 23, 2009

• #5

last time I saw them was on summit online, might wanna just call them up and find out

 

W

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Sep 11, 2005

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Apr 24, 2009

#6

• Apr 24, 2009

• #6

I did call and the recommended the spring set listed above. Which is not a Ford brand. Just wanna make sure I get the right stuff.

 

ID89GT

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May 26, 2008

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Spokane Valley, WA

Apr 24, 2009

#7

• Apr 24, 2009

• #7

People usually say the Trick Flow ones are good in Summit

 

W

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Sep 11, 2005

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Yay Area, California

Apr 24, 2009

#8

• Apr 24, 2009

• #8

Any of you guys have a link to the direct part used? Thing that worries me about summit, is they dont separate the gt from the cobra in their selection criteria. So I am really trying to make sure I buy the right stuff. A part number or link to the recommended spring set would be great.

 

KamiKaziDK

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May 16, 2005

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Mesa, Az

Apr 24, 2009

#9

• Apr 24, 2009

• #9

Ford Racing M-6513-A50 - Ford Racing Valve Springs

Ford Racing M-6513-A351 - Ford Racing Valve Springs


Here are the two spring sets that summit has, I'd get the a50s if I were you, I think they support up to a .550 lift??

 

keepinitril

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Mar 24, 2009

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Anaheim Hills

Apr 24, 2009

#10

• Apr 24, 2009

• #10

what Idid

well, I replaced mine with a set of chevy small block springs going into mine. each set of spring and retainers, Ill save 60 grams over each valve. and then I had to take some material off the heads, so now Ive cut about 4lbs on each head

 

W

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Sep 11, 2005

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Yay Area, California

Apr 24, 2009

#11

• Apr 24, 2009

• #11

Thanks, I am going to look into those springs now!!