I've been wrestling with my efan installation on my 240 being converted to a SBC. It just ain't fitting. So far I've trimmed the front support back to the point where the hump is no longer there and if I go any further I'm going to be cutting the riveted plate off as well. I'm starting to get worried about the strength of the piece since that stamped ridge probably added a lot of rigidity, and it provides some support for the hood latch.

I don't think I installed the engine any farther forward than typical, not that there's really anything I can do about it, but I'm kinda running out of room. (I have no idea how I'm going to route my air intake ducting, but that's another story).

I spent some time thinking about it today. I really don't want to go to a straight mechanical fan, although it would be the easiest to fit I think. I'd be comfortable with a clutch fan, but peeping out the aftermarket clutches on summit, I'm not sure it would gain me any clearance. I'd really like to stay with the e-fan, but I'm not sure if I can make it fit. I was looking at it today, pondering the situation and any future cuts, and realized that I don't have to have it installed as it is.

Because of the comments in the JTR manual about how well the Taurus fan fits the Corvette radiator, I mounted the fan pretty much centered on the radiator where the shrouding had the best coverage of the core. Thinking about it now, this isn't really necessary, and I could easily mount it offset of center. The question is, how much off-center can it be. Could I mount it on the extreme right, so that the very edge of the blade is on the edge of the radiator. Assuming I shrouded it properly, it should still pull air evenly through the radiator, correct?

Also how much clearance is necessary for the blades of the efan? The stock shroud seems to have a goodly amount" of clearance between the radiator and the fan. Eyeballing it, it looks like I could shave down ~1/2" of the shrouding, and still have adequate clearance. In an efan setup, where the fan and shroud are mounted to the radiator itself, I would think the only clearance you'd need would be to account for flex in the blades. So, is there any? How much?

SUMMARY:

Having clearance issues with efan install.
Will a clutch fan gain me any room?
Does positioning of fan over radiator make a difference?
How much clearance between blade and radiator is necessary in an eFan install.

Thanks,

Adam