GM Performance crate motor question

[navyflyer72]

This may sound like a stupid question, but I have to ask. I have a GM Performance crate 350/290 (truck motor) and it has what appears to be a passenger side oil dipstick location, but my oil dipstick tube only fits in the driver side hole. What can I use to block off the hole on the passenger side? If it is not an alternate oil dipstick location(which I guess it isn't since the tube won't fit in it), what is it? Thanks in advance for any help.

[Adam's 55 Chevy]

tap it and plug it (I did this with a slingshot engine) or use JB weld?

[justasquid]

Is it reamed out and all the way through to the oil pan?

My guess, "and only a guess" is that it is not all the way through. It may just be a pilot they use before the machining process. That way, they can use either side of the engine. they would just machine (drill out) one side and leave the other alone.

[ZZ430]

Included in every one of those is a plastic bag that contains steel plugs for that purpose.

[navyflyer72]

Thanks for all the responses, to answer a few questions:

It is reamed all the way through, that's how I (unfortunately) found it, when hot oil was spewing out of it. I tried the plugs that came with the engine, none fit, even after freezing them overnight, is there a certain way to install these plugs? I was just bashing the hell out of them with a hammer, (not a lot of finess here).

-George