Does anyone know where to find these for use with early heads and late model (post 87') TPI intake?
I'm going to have to mod the center holes and want to be sure of a good seal.

 

You can get 15° tapered washers (structural steel washers) or use self-centering washer sets if you can find them. McMaster has the sets if you want them by mail/UPS.

The 15° washers are fairly close to the 18° you need to make good bearing contact. You can adjust them with a file by hand if you wish.

The self-centering spherical washers are neat, and will provide excellent bearing strenght at any angle, if you have the room for them. They do stand up a bit higher than a standard washer, but with a lower profile cap screw, you can easily make them fit.

 

I've used rocker pivot ***** for that purpose.
It isn't quite the same as an angled washer, but it's a lot better than just putting a bolt through the hole and tightening it down, like a lot of guys do (successfully, I believe)
It centers the load under the bolt head rather than putting it on the edge.

 

Rocker pivots are a little taller, but if you have room, that's a good idea. They're a lot cheaper than $3 apiece if you already have them lying around.

 

Thanks guys, I was begining to wonder if I should mill the manifold to the new angle and just go with a flat washer.
This is easier and with the Torq bolts I have, the clearance should be fine.
Jp

 

I'm one of the guys that just put the bolt in there and tightend it down.
Almost 3,000 miles on it and no problems so far, knock on my head,

 

McMaster Carr
92810A130 ***** edit (too tall, they hit runners!)
Aluminum Square Beveled Washer
3/8" Screw Size, 7/16" Hole Dia, 1-1/4" Square,
Packs of 5 $5.64 Pack

I modeled up the sperical type and they will only give about 5 degrees per set (3 sets needed) and they would be too tall too fit. These are the best fit but may need to be ground down so they are not 1-1/4" wide.
The 14 degree angle is about perfect for this. I'm pretty much out of patience but I'll wait for them to show up rather than just using the bolts and cranking them down. I don't want to do this twice

Edited 2-9-05, angled washers are perfect but hit the runners so I had to take them out. Grind the manifold to get better contact with bolts seems to be the only way.
John

 

has anyone ever seena n HSR is person, the intake is made for use with ealry and late model heads. Does it use special washers? no!!!!!

be smart now man, just make the correction properly, amnd you shouldn't have to worry.

 

Pot... kettle.

 

I just don't like the idea of only having about 25% head contact on the manifold. This will come loose over time.
I've put it on but will install the washers when they arrive.
That IS making the correction properly.

 

stealthram.com has the part number for those washers

 

I put in the angled washers I mentioned but they hit the runners and would go together because of the added height.
Looks like the only way is to grind some of the manifold to make better bolt contact.
Oh well, It was a good try anyway.
Jp

 

http://www.lt1intake.com/
There's a nifty way to spot face those bolt holes on this site

 

Uh I HAVE the HSR.
Yes it is DRILLED for both patterns...
That does not help when the bolt is 10+* out of line with the intake.