I'm trying to determine if I can use the 454/502 EFI based K&N flame arrestor on my 350 MAG MPI (see pics below). This might sound a bit strange, but I think there is a good chance it might work. Can someone who has the 454/502 EFI package tell me what the hole spacing is on the throttle body (see pics below)? I know it sounds crazy but look.

Here's the kit I want to buy... I think. The hole locations look correct, but are they really? What do you guys think?


Here's a shot of the upper intake (see how it looks like the 454/502)


Another shot of the stock arrestor


Here is the arrestor and throttle body.


Throttle body hole spacing.

Randy, They are the same, Both the 350Mag efi and 454/502Mag efi all use the same throttle body gasket #27-850396 and flame arrestor bracket #807654T

What is your engine serial #?

Also, does your flame arrestor part # happen to be 807656A 2 ??

Thanks for the info Lee. How do you always know so much? lol

For the record the engine serial number is: 0K150301.


Checking arrestor part number...

Ranman,

I already checked. Lee is right. The parts match.

It's the same