Seer's 2012 GT500

stkjock

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Ultimate performance is priceless.
 

Seer

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Ultimate performance is priceless.

Tell that to my wife, I still have to SC her 5.0 this year.

Crowers and comps are $1300. I already upgraded the valve springs and retainers.
 

stkjock

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L&M is $1498 [with less than a .500 lift, for just the sticks, 7 day turn around. if more lift than add $100 for better cores. Mikes cams are usually .500+ lift for max performance

You must know the max lift allowed by spring and be responsible for that info. Call him to spec it out. IMO his will make best power.

Custom beats off the shelf every time IMO.
 

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L&M is $1498 [with less than a .500 lift, for just the sticks, 7 day turn around. if more lift than add $100 for better cores. Mikes cams are usually .500+ lift for max performance

You must know the max lift allowed by spring and be responsible for that info. Call him to spec it out. IMO his will make best power.

Custom beats off the shelf every time IMO.

My springs are PAC 1214's, good to .600
 

stkjock

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My springs are PAC 1214's, good to .600

What part numbers intake & exhaust retainer?

Mike says not good for .600 in the 5.4 head unless specific retainer is used. That's a 2v spring.
 

Seer

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What part numbers intake & exhaust retainer?

Mike says not good for .600 in the 5.4 head unless specific retainer is used. That's a 2v spring.

Crower 87024-16 and 87025-16

Been a proven setup from a few reputable builders. Yep, well aware it's a 2v spring, as are most springs used in the F-GT/GT500/R head.

Spring specs from PAC:

1200 Series Beehive Valve Spring
Spring OD: 1.061
Spring ID: 0.636
Seat Pressure: 100 LBS @ 1.640
Open Pressure: 265 LBS @ 1.080
Spring Rate: 275
Max Coil Bind: 1.040
Max Lift: .600
 

stkjock

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From Michael,

He has the correct basic setup, which we modify slightly.
I have found a variation of GT500 spring install heights which effect max lift so without having exact detail he could run a max cam of .550-.560 lift on the exhaust and .575 lift on intake, although I would be more comfortable having his exact dimensions or I may even reduce max lift slightly from that stated in the former.

Note – when guys degree the Modular cams one will find a difference on the cams advertised lift and the measured lift the difference due to the geometry, ie. rocker, valve tip height and base circle.

Jason - if you really want a max performance cam - get a custom cam from L&M.


this car was local to me - L&M did a short block and cam for the guy - he gained 100 whp on around 3# less boost with the L&M cam set up.

not to mention the crazy sound of the cam




Best bet is to call him direct and go over your goals.
 

Seer

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From Michael,



Jason - if you really want a max performance cam - get a custom cam from L&M.


this car was local to me - L&M did a short block and cam for the guy - he gained 100 whp on around 3# less boost with the L&M cam set up.

not to mention the crazy sound of the cam




Best bet is to call him direct and go over your goals.

I'll give him a call tomorrow after I get out of this funeral I need to go to.
 
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