Offshoreonly.com - what is the difference between 500 efi and 525 efi

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- - what is the difference between 500 efi and 525 efi (https://www.offshoreonly.com/forums/general-boating-discussion/196549-what-difference-between-500-efi-525-efi.html)

tcm07

10-02-2008 08:59 AM

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

kennyo

10-02-2008 09:21 AM

25 efi's.

Westcoast

10-02-2008 09:33 AM

differences- 525 has alum. heads and FWC.

outriggers

10-02-2008 09:47 AM

Some good info: http://www.offshoreonly.com/forums/s...ghlight=500efi I think the bottom end is also different.

wellcrafted

10-02-2008 09:52 AM

Quote:

Originally Posted by tcm07 (Post 2703710)

65 more hp in 525 efi

Knot 4 Me

10-02-2008 10:25 AM

Closed cooled, Edelbrock aluminum heads, long tube vs. E-top headers, etc..

Gladhe8er

10-02-2008 10:28 AM

Both motors should get a top-end job around 200-250 hours.

C_Spray

10-02-2008 11:15 AM

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

Chris Sunkin

10-02-2008 11:21 AM

Quote:

Originally Posted by kennyo (Post 2703738)

25 efi's.

I knew something like this was going to be in the first replies and I STILL laughed.

panicrev

10-02-2008 02:47 PM

:cool-smiley-027:

Quote:

Originally Posted by kennyo (Post 2703738)

25 efi's.

dagnabit, that was what i was going to say

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