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what is the difference between 500 efi and 525 efi

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what is the difference between 500 efi and 525 efi

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Old 10-02-2008 | 08:59 AM
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tcm07
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Default what is the difference between 500 efi and 525 efi
except one being a newer model what are the differences between 500 efi and 525 efi what is an average running time untill the rebuilt of a 500 efi and is there any disadvanteges for that type of engine .
thanks
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Old 10-02-2008 | 09:21 AM
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kennyo
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25 efi's.
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Old 10-02-2008 | 09:33 AM
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Westcoast
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differences- 525 has alum. heads and FWC.
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Old 10-02-2008 | 09:47 AM
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Some good info: http://www.offshoreonly.com/forums/s...ghlight=500efi I think the bottom end is also different.
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Old 10-02-2008 | 09:52 AM
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wellcrafted
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Originally Posted by tcm07
except one being a newer model what are the differences between 500 efi and 525 efi what is an average running time untill the rebuilt of a 500 efi and is there any disadvanteges for that type of engine .
thanks
65 more hp in 525 efi
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Old 10-02-2008 | 10:25 AM
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Closed cooled, Edelbrock aluminum heads, long tube vs. E-top headers, etc..
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Old 10-02-2008 | 10:28 AM
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Both motors should get a top-end job around 200-250 hours.
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Old 10-02-2008 | 11:15 AM
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The short answer is that there is quite a big difference. Other than both being 502's, they don't share much beyond the basic block and intake manifold
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Old 10-02-2008 | 11:21 AM
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Chris Sunkin
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Originally Posted by kennyo
25 efi's.
I knew something like this was going to be in the first replies and I STILL laughed.
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Old 10-02-2008 | 02:47 PM
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panicrev
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Originally Posted by kennyo
25 efi's.
dagnabit, that was what i was going to say
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