340 oil adaptors?

[Convertcuda]

I have been looking on ebay at 340 oil adaptors. I noticed that some have different style attaching bolts and they were either made from cast iron or aluminum. I want to get the correct one for 340 and was wondering if anyone could share there knowledge on this piece.

Thanks Ken

[Dakota]

Ken - I have a cast iron one on my 340 for a 70 Challenger that I believe is original equipment.    I found this information posted on "For A Bodies Only" site:

"Some of the aluminum are for magnum blocks they are different than the early LA. The offset on the mounting flange is different. I ran into this with my R-3 block. I had to find one for a magnum because the LA would not seal."

[Shane Kelley]

Direct Connection and Mopar Performance offered new adapters for the LA motor that were aluminum also. The originals were all cast iron to the best of my knowledge.

[Convertcuda]

Thanks guys I also noticed the that the attaching bolt has a slotted hole or just a normal hole in the bolt. Which is correct?

Thanks

[Dakota]

Best I remember, there was a slot in mine.