After searching 10 pages Im still a bit confused.

Was an I6, swapped to 302. Not by me so again I'm chasing parts.

I wold like to get better cooling so I bought a fan shroud for the rad. The motor looks to sit center, but the radiator is off a bit, with no adjustment available. The top left of the shroud is about 1/4 inch from rubbing if I pull the shroud up all the way.

Basically its not centered correctly. I think I have the 20" radiator, but Im not sure where to measure from. The 20" shroud fits up to it good so I am assuming it is.

Water pump looks to be stock with short "nose". Im running a 2" spacer with a 5 blade fan (17"?). It sits about 2" form the rad.

Suggestions?

 

If the shroud fits tightly aginst the radiator then the closer the fan tip is to the shroud edge, the better. It's all about not allolwing the air to circumvent the blades and forcing it to be pulled through the radiator. You need to remember that the fan needs to be somewhat centered between the mass of the engine and the radiator. By having the blades a few inches from the radiator (using a shroud), it allows a more "even" amount of air to be pulled with fewer hot spots like in the center or outer edges of the radiator. Ramamber the tips of the blades do 90% of the work. On the flip, the air needs somewhere to go once it exits the fan, and if their too close to the engine, the air will "pile up" and this will result in a loss of flow also. Hope this helps.
http://www.griffinrad.com/fans_shrouds.cfm

 

Hi,
I'll offer, I'm a big fan of coolant recovery systems. These systems will maximize the total volume of coolant your systems is capable of holding. It will allow your engine of several heating and cooling cycles to burp any unwanted air and replace with coolant. As I have mentioned many times, it's the coolant that absorbs heat, not air. With a properly maintained recovery system, you should see your coolant level just at the level with rad cap overflow outlet. Running a recovery system does not allow your engine to puke it's environmentally dangerous coolant on the ground, as well.
Happy Motoring!

 

You need a little room for the engine to move a little in the mounts, being close at the top left may or may not be an issue.

You should be able to adjust the shroud a little by gently bending it and/or drilling the mounting hole a little big to give you a little room to center things up.

Re-pop parts may or may not fit like originals.... many of them seem to need a little "adjustment"...

 

ya, that happens a lot with the fan hitting the shroud. You could slot the radiator in whichever direction you need it to move to locate the shoroud away from the tips of the fan. You can also slot the shroud itself with a die grinder or a metal scribe or screw driver heated up red hot with a torch. Lastly, you can loosen up the 6 bolts that secure the engine mounts to the frame to move the entire engine up or down a little.