Offshoreonly.com - 4 and 7 swap

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hammerdown500

05-09-2017 11:44 AM

4 and 7 swap

I have a 525 cam in my 502 and I am.having ignition timing issues does anyone know if the the stock 525 efi has the 4 and 7 plug swap

F-2 Speedy

05-09-2017 12:02 PM

it does not, standard firing order

hammerdown500

05-09-2017 12:24 PM

Thanks

SB	05-09-2017 01:58 PM

You can get the 525EFI CAM from Crane with the 4/7 swap. Do you have paperwork for your cam ? Or did you get it used ?

dereknkathy

05-10-2017 04:30 AM

it would be a dead miss on 4 and 7 if it was a swapped cam. running on 6 cyls.

Baja Rooster

05-10-2017 09:58 AM

Quote:

Originally Posted by SB (Post 4552759)

You can get the 525EFI CAM from Crane with the 4/7 swap. Do you have paperwork for your cam ? Or did you get it used ?

Sorry for the side track, but any real benefit to this swap? Would it at least sound cooler? :)

dereknkathy

05-10-2017 10:28 AM

The real Advantage is five and seven aren't firing one after the other in the same exhaust manifold with the ports right essentially next to each other. But it's not a huge advantage. Some people like the way it sounds better with the 4-7 swap.

30ftpanther

05-10-2017 11:35 AM

Quote:

Originally Posted by Baja Rooster (Post 4553015)

Sorry for the side track, but any real benefit to this swap? Would it at least sound cooler? :)

http://www.hotrod.com/articles/lunati-cams/.

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