3800 rods in a 3500?

[ericjon262]

I noticed the 3500 has the same size rod journals as the 3500, anyone use 3800 rods in their 3500? I know special pistons would probably be in order, anything else I'm missing?

[ericjon262]

anyone?

[geoffinbc]

Well you need to find out the big end width in order to know if it will fit the crank. The pin size, like you mentioned, does not really matter since you can design a piston to accommodate it. The length needs to be within the ballpark of a 3500 rod in order to avoid a piston with a pin in the ring lands or a compression height that is super tall. Find 3800 rod specs and you will have your answer.

[ericjon262]

I looked, and I think I may have found the news I didn't want to find, I'm going to call eagle tomorrow and see for sure what the width is on the buick rods, but the source I have now says they are .845 wide vs the LX9's .866

[NateD4]

I believe I posted something about this in another post a day or two ago.

[ericjon262]

yep, that's where I got the .845 width from...