SB engine rebuilding got ya! School is Open!

subcom said

Was not aware of this one. Is that hole typically already in place in the plug kits you buy or do you have to drill it?

Click to expand...

Has to be drilled by the engine assembler. A 1/32" drill bit is what I use, so it takes some care to do it without snapping off the bit. I use a Bridgeport to do it.