Hey guys. I was looking at my spare intake manifolds today, and realized that the LIM intake holes on the block side look small. Especially the two longer holes in the middle. I'm wondering how much I can open them up. I have a whole pile of gasket paper to make a gasket for it, I'm just wondering how big is too big. Ideally measurements would be great. I just don't want to make them bigger than the holes on the block. Thanks.

-Rick

PS. Anyone know where to get a good deal on Pineapple Racing sleeves?

 

Ive opened mine up mine quiet a bit the uim is easy to mate to the lim so you can go pretty big on porting the uim and matching the lower one to that. But what i want to do next is find a bit i can push into the runners and open them up some.something like a flexible bit but i havent had the time to do it soo im waiting on that.

 

I can mate the intakes easy enough, I'm just curious on how big you can go manifold to block. Do you have any dimensions for yours?

 

Yea their i had a problem i wasnt sure if i could keep all the shard's of metal from falling into the engine if thats what you mean. What i have thought though is to plug the holes up and try to mate my block to my lim because my lim is ported on the blockside.Ive opened my inner runners up probably 1 centimeter and my outside runners two centimeters blockside. I know it is restrictive and i hope to finish soon. The top though can be opened up more!