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Need headers for 10:1 540EFI

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Old 05-25-2010, 07:14 AM
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Question Need headers for 10:1 540EFI

Im looking for headers for the 540EFI that just drained my wallet. 600hp, 10:1, Merlin grumpy jenkins 320 heads, 63# Injectors. My boat runs strait through the transom from the stock manifolds now.
What is the header of choice, and what is the budget header?
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Old 05-26-2010, 12:45 PM
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I was hoping someone would know more about this subject than me! Come on guys its not hard.
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Old 05-26-2010, 12:55 PM
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i have some used stellings if interested call me i am in il. also 309-925-4621 karl
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Old 05-26-2010, 09:50 PM
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Thats a lot of compression for an iron head engine! I was told to keep my engine under 9.9:1 with Aluminum heads.
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Old 05-26-2010, 10:18 PM
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Im running a 540 with 10-1comp, same aluminum heads. Crane 741 cam and lightning headers.
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Old 05-26-2010, 10:51 PM
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Originally Posted by whoya
Im running a 540 with 10-1comp, same aluminum heads. Crane 741 cam and lightning headers.
Merlin Grumpy heads are iron, the VR series are merlins aluminum or at least as far as I know there isn't an aluminum jenkins head.
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Old 05-27-2010, 07:01 AM
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i been runnig stainless marine headers for 20years very happy with them i have a 540dart block pro1 heads dart intake 1000holley carb 650ponys
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Old 05-27-2010, 07:22 AM
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Originally Posted by endeavour32
Merlin Grumpy heads are iron, the VR series are merlins aluminum or at least as far as I know there isn't an aluminum jenkins head.
You probably can't zoom in but thats what these are.
Attached Thumbnails Need headers for 10:1 540EFI-p1010155.jpg  
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Old 05-30-2010, 10:03 AM
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Back to the original thought, whats the best header design to run?
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