This is vaguely related to the water pump replacement that I'm doing.

They seem like a good idea but theory aside if I choose to install one it would be the canton setup.

They all require removal of main cap bolts and those bolts are to be replaced with studs. 2 questions related to that.

1) The windage tray has a stud kit that replaces bolts on main cap 2 and 4 with studs. Is there going to be an issue running studs on only 2 main caps? I would think not but wanted some thoughts on that. (Tq specs show 80 ftlbs for the studs. In pictures and from reading it looks like they are ARP studs) Stock Tq spec is 70 ftlbs

2) Is it correct that the studs install only hand tight into the block (lock tight optional)? No torque value is required for installing the stud into the block other than "hand tight"

Thanks

-Gun

 

You should be fine with studs on only 2 main caps...that said, for uniformity, it'd be a good idea to go all stud. As for torquing them, ARP calls for hand tight, so just thread them in and then snug them up with your hands.

Studs stretch the whole length when tightened, so if you torque the studs down, the threaded part in the block will get stretched that much more when the caps are torqued down. It can lead to over torquing the block threads of the stud. If they're not screwed all the way down then you have reduced thread engagement. All you're looking to do when you install the studs is get the shoulder of the stud properly seated.

That said, windage trays are always nice and don't hurt anything, only help. Whether you need one or not...in most street applications they're not needed, but if you plan on turning rpm regularly then it's definitely wanted. If you're going to the trouble of pulling the pan to install one, might as well put a good baffled pan on as well. If you plan on doing any kind of racing other than the strip that involves turning (autox, road race etc) then you definitely want a trap door baffled pan and a windage tray to avoid oiling problems.

 

awesome thanks for the input!

-Gun

 

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the studs in a block don't act much differently than a bolt in a block . . they both pull on the threads as the bolt or nut is tightened.

as mentioned, a tray is not needed unless you frequently spin over 5500 rpm or so.

all it does is keep the wind from the crank blowing oil up on it from the pan.

unless you have a high hp engine, the less fancy cr_p you have the better . . just more stuff to go wrong.
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