1996 PCM carbed 351, which spark plugs?

[Mikeski]

My turn with the spark plug Q...

Helping my buddy tune up his MB sports. It has a carburated PCM 351, which plugs should I use? I prefer Motorcraft plugs.

I think they are either BRF3M or ASF32M, for some reason I am thinking the ASF plugs are the right ones but I am not sure. The BRF's are 18mm, the ASF's are 14mm. I don't have access to the boat, need to bring the plugs to the lake with me.

Thanks,
Mikeski

[east tx skier]

I don't know Motorcraft #s, but for the 351 HO, I used the AL764. For the 351, I think it's the AL24. You might use that to cross reference.

[Nautiquehunter]

RE: 1996 PCM carbed 351, which spark plugs?

The BRF3M plugs are 18mm [large plugs] the ASF32M are 14mm [peanut small ] plugs.
If you use a 13/16 socket use the BRF3M.
If you use a 5/8 socket use the ASF32M.

[TRBenj]

RE: 1996 PCM carbed 351, which spark plugs?

Doug is right.

E7 (base) heads get the Autolite 24's. GT40 (HO) heads get the Autolite 764's. Id stick with Autolite plugs for the Fords.

[Mikeski]

Peanuts...

ASF32M