Valve springs 500 EFI

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03-26-2010, 07:50 PM

Jim Diesel

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Valve springs 500 EFI

What brand of valve springs are you guys using for a 500 EFI? I have heard people use Crane or Isky alot...

03-26-2010, 08:38 PM

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Quote:

Originally Posted by Jim Diesel

What brand of valve springs are you guys using for a 500 EFI? I have heard people use Crane or Isky alot...

Take a look at Pac Spring. Anything that is a new high silicon pacalloy process spring will last forever. I recently used a set of Manley Nextec on Hp500 heads. They are made by PSI Spring, as are Isky springs.

03-26-2010, 09:41 PM

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Quote:

Originally Posted by Jim Diesel

What brand of valve springs are you guys using for a 500 EFI? I have heard people use Crane or Isky alot...

Isky 8005sp

03-27-2010, 08:48 AM

TylerCrockett

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Originally Posted by formula 382 sr-1

Isky 8005sp

I use a lot of the Isky 8205

03-27-2010, 09:20 AM

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Quote:

Originally Posted by TylerCrockett

I use a lot of the Isky 8205

Tyler whats the spec diff VS the comp 929? Being its going on a stock 500efi

Rob

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03-27-2010, 07:24 PM

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Jim, call Eddie he's not to far away. He will sell you the right upgraded retainers and keepers to go with the springs.

03-28-2010, 04:17 PM

Jim Diesel

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Quote:

Originally Posted by TylerCrockett

I use a lot of the Isky 8205

Whats the diffrence between the 8205, 8205 PLUS, and 8005sp? If my leak down shows good should I still replace them since it has 360 Hours?

Quote:

Originally Posted by 45SS

Jim, call Eddie he's not to far away. He will sell you the right upgraded retainers and keepers to go with the springs.

Im going to give him a call after I do a leak down test!

03-28-2010, 09:02 PM

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Quote:

Originally Posted by Jim Diesel

Whats the diffrence between the 8205, 8205 PLUS, and 8005sp? If my leak down shows good should I still replace them since it has 360 Hours?

Im going to give him a call after I do a leak down test!

Leakdown really doesnt tell you whether your valve springs are weak or not. I would replace them at 360 hours.