Petro's Project ERL Superdeck 427 w/ Whipple 2.9L
#601
Chamfered both sides of the washers (they’re flat unlike the head bolt style washers with the generous factory chamfer) for the head studs and started roughing up the head surface side. The chamfer relieves the sharp edge which allows the fat surface of the nut to more fully engage/spread the load on the washer. The roughing up on the head surface side keeps the washer from spinning and acting like a bearing which should make for more accurate torque.
#603
I didnt think about that but it doesn’t look to be or feel questionable. Plus they aren’t seeing a load like hanging a weight off them. I don’t think anyways. I think they’ll hold up to max of 80psi-ish fuel pressure.
I wish the back chamfer bit I want wasn’t $342.00 because I have a cool idea for the injector holes.
I wish the back chamfer bit I want wasn’t $342.00 because I have a cool idea for the injector holes.
#606
My bad...I don’t mean to come off douchey if I did I apologize. That’s the last thing I want to be viewed as. Anywho yeah my fingers are crossed none leak. Did you use a AN assembly lube and anti-seize thread sealant on the fittings? That may or may not help with the seeping. I’ve personally never had to tighten AN fittings real tight but that could be luck and not having messed with as many as others.
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arthursc2 (09-11-2018)
#608
TECH Addict
iTrader: (28)
and no worries petro, i overthink everything usually..
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Petraszewsky (09-11-2018)
#609
Since I’m using the 1” blower spacer I needed longer bolts. Well on one part of the case I couldn’t fit the longer bolt because of the drive gear overhang. So I ordered some double ended studs along with these nice 12pt stainless nuts. Some other trick pieces I have coming are some A4 stainless spherical washers to match the flat hex head conical seat bolts I replaced with studs. ARP is super proud of these too