Collient plug f54 block

[rexz]

Hi guys, does anyone know the size of the drain plug on a f54 block.

Thanks Rex

[zKars]

The head is 22mm. but I'm guessing you mean the thread size. Let me get one and check. My guess is 1/2 inch BSPT.

[Zed Head]

I know it's the same size as the elbow in the back of the head that feeds the heater core.  I've swapped them.  

[zKars]

Yup, 1/2 BSPT. 14 TPI. Tapered pipe thread.

Now, since 1/2 NPT is also 14 TPI, I'll say the likely un-popular thing and suggest you could use the NPT equivalent in its place with little consequence. Happy threading and plugging.

BTW, this was checked on an N42 block. I don't think this varied across the various L6 blocks.

Remind me to put that thing back in....

Edited November 17, 2015 by zKars

[rexz]

jim, thank you for the info.. Much appreciated !