ms4 specs help

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Feb 10, 2013 | 01:29 AM

99slomaro

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From: bluffton ohio

ms4 specs help

Alrighty i just bought a ms4 cam from a member on here it was brand new and i got to looking on the the cam box and the specs were. .651 intake. .608 exhaust on a 111.5 lsa it says right on the box ls1-ms4. i just dont understand why the specs are different than a normal ms4. And also will i still be able to run this cam in my car stock bottom end ls1 with stage 1 prc heads with patriot gold. 650 springs. Just very leary on the specs. Hopefully someone can help me.

Feb 10, 2013 | 03:09 AM

PREDATOR-Z

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From: BFE

It is not different. See when a cam is ground it doesn't come out exactly like advertised numbers. Usually up to 2% variance is acceptable.
As for ptv etc... MEASURE

Feb 10, 2013 | 03:25 AM

Ronny_02_WS6

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I would use .660 or .675 Dual Springs.

Feb 11, 2013 | 07:53 PM

99slomaro

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Has anyone had any experience with this cam at this high of a lift on stock ls1 pistons and ls6 heads?

Feb 11, 2013 | 07:58 PM

Z28SteveA4

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that setup has been used a million different time man. do a quick search and you should easily find your answer if someone doesnt chime in.

Feb 11, 2013 | 09:43 PM

99slomaro

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Yeah i know its a popular cam but i donr really hear or see anyone with this cam with a. .651lift. Thats my only concern about it

Feb 12, 2013 | 12:07 AM

bww3588

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It's .002 more than advertised. Also, lift has very little to do with ptv clearance. Duration is what will get you.

Measure to be sure.

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Feb 28, 2013 | 07:19 AM

irocz8E7

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From: morgantown wv

i just ordered an ms4 from tsp on a 110 and it says the same .651 lift but i got .675 springs with it. all other numbers are correct. should be good to go then right?

Feb 28, 2013 | 08:13 AM

#10

J Glen

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From: Tri-Cities, TN

Your springs our a little weak for that cam. If you had the patriot extreme's you would be good. But the gold's are only made for .650 lift.

Feb 28, 2013 | 09:49 AM

#11

irocz8E7

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From: morgantown wv

so the prc's .675 from texas are too weak?

Feb 28, 2013 | 01:02 PM

#12

J Glen

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Quote:

Originally Posted by irocz8E7

so the prc's .675 from texas are too weak?

Sorry I meant the OP springs were too weak. If they are rated for .675 lift you will be okay.

Feb 28, 2013 | 03:32 PM

#13

irocz8E7

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From: morgantown wv

sweet...ready to do my first cam swap and ported 799's. should get up and go

Feb 28, 2013 | 06:52 PM

#14

VandykeT/A

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From: Hurley, VA

My MS4s cam card said 651 608 to.

Feb 28, 2013 | 07:00 PM

#15

DietCoke

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Quote:

Originally Posted by J Glen

Sorry I meant the OP springs were too weak. If they are rated for .675 lift you will be okay.

Stop giving advice before you give somebody even less clueless then you are bad information. The lift a spring is rated to has absolutely zero to do with how weak or strong a spring is.

The TSP EHT .675 springs are extremely stout for a stock pocket spring, you won't have any issues as they are almost 500 pounds open at your lift.

Feb 28, 2013 | 07:28 PM

#16

studderin

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Quote:

Originally Posted by PREDATOR-Z

Well running LSK lifts on stock heads is pointless anyways

Feb 28, 2013 | 07:53 PM

#17

krissoto

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My cam card was .651/.609, and I have ran both sets of springs mentioned in this thread, without any issues on stock pistons.

Feb 28, 2013 | 08:17 PM

#18

garygnu

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what push rods will you use ?if the push rod is heavy will it require more spring pressure ?

Mar 1, 2013 | 11:01 AM

#19

J Glen

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From: Tri-Cities, TN

Quote:

Originally Posted by DietCoke

If you think I only look at springs by their max lift rating then you don't quite have me figured out dude. Not sure why you want to just call me clueless when you do not know anything about me. Now I have never put a tsp valve spring on my spring tester before so I do not know much about it. So lift numbers are all I have to go by. However, I was trying to tell the OP that his Pat Gold springs would be too weak for that cam because they are only 375 pounds at open load. But I guess I am clueless about that one too aren't I?

Mar 1, 2013 | 07:48 PM

#20

DietCoke

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From: Richmond Hill, GA

Quote:

Originally Posted by J Glen

If you think I only look at springs by their max lift rating then you don't quite have me figured out dude.

Let me quote your ignorant statement.

Quote:

Originally Posted by J Glen

If they are rated for .675 lift you will be okay

Last edited by DietCoke; Mar 2, 2013 at 12:15 PM.

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ms4 specs help

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