I am wanting to know what you all did to slant your radiator in a 3600 or 3100. I am doing a 3600 on an S10 frame. But I have the steering gearbox in the way, so it would sit to high. I am looking for input to do this right the first time. Thanks. Pictures would be great, they speak volumes.
I assume you mean lean the top tank backward? Pulling the left side back also works if that helps. You have to mask off the 2 triangles of open space created between the radiator bulkhead and the new core position. Depending on the design, they can have the rad side mtg. holes on both sides. Seal them with gaskets, I use old inner tube sections. Sealing the top tank to the hood will be worse, depends on what the inside of the hood looks like over the new tank position. Whatever: all air reaching the core must pass through it, not around it. The shroud will be similar with reverse angle except of course triangular sides with the opening "normal" to the fan. I make dummies out of "shirt" cardboard to get the sizes, then 18 gauge galvanized. Pop rivets are helpful to join to either rad or bulkhead. If the angle is very shallow, the triangles can have long slots to drop the rad down into place, but this usually requires the hood to come wayyy up (or off) to work.
There is plenty of room to raise the radiator with no hood contact problem. As the picture shows the radiator is only raised a bit over two inches. I prefer a smaller fan blade with a GOOD shroud but many go with an electric puller fan since there is bukoos of room even with a long water pump. A regular fan blade will hit the lower hose nipple or wrongly designed auto trans cooler lines so a custom shroud is necessary.
Ah, the old pesky radiator/steering box clearance issue on an S10 conversion. By far most guys fabricate a new radiator mount above the steering box and use a smaller 19x22 aluminum radiator from Summit Racing. They mount it vertical - no slant back.