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factory crossram intake bolts torque specs

Posted By: 1964maxwedge

factory crossram intake bolts torque specs - 07/22/14 07:38 PM

The problem I'm having is that I have to torque bolts to 40 foot pounds to make the gasket seal. The heads are Indy ez1 gaskets are super performance 6415 .062 thick heads are not milled. I'm thinking intake might be I tried propane didn't here any change .
Posted By: Clanton

Re: factory crossram intake bolts torque specs - 07/22/14 08:02 PM

40# is spec for the intake of any kind I think.
Posted By: DoubleD

Re: factory crossram intake bolts torque specs - 07/22/14 10:50 PM

That’s way too much on those bolts going into the aluminum head – I have the same set-up with x-ram and the EZ-1 heads - I just snug them and never had an issue with sealing – I would bet the intake has been shaved or you are hung up on the Indy valley tray cover bolts – I had to switch them out on the ends with machine screws to get the intake to set right
Posted By: 1964maxwedge

Re: factory crossram intake bolts torque specs - 07/22/14 11:30 PM

So how do I know what thickness of intake gaskets to order and are super performance gaskets stackable? I changed the valley bolts to a flat style and there is no interference.
.
Posted By: DoubleD

Re: factory crossram intake bolts torque specs - 07/23/14 01:16 AM

I know the Indy gaskets come in .060 and .030 and yes you can stack them - looks like super performance also comes in .031
Posted By: Clanton

Re: factory crossram intake bolts torque specs - 07/23/14 02:11 AM

Quote:

So how do I know what thickness of intake gaskets to order and are super performance gaskets stackable? I changed the valley bolts to a flat style and there is no interference.
.


I use feeler gauges in each corner of the intake.
Posted By: roadhazard

Re: factory crossram intake bolts torque specs - 07/23/14 03:18 AM

Quote:

So how do I know what thickness of intake gaskets to order and are super performance gaskets stackable? I changed the valley bolts to a flat style and there is no interference.
.




Thickness will depend on how the intake ports line up top and bottom. If you have some gasket material there you can measure it with some dial calipers to confirm thickness's and use it as a shim to check port alignment. Common thicknesses are .015", .031" and .062"
Or as stated if you have lots of feeler gauges you can put those in all four corners.

If you should happen to require more than .062" thick gaskets, yes, you can bond multiple gaskets together for your requirements.

Bonding gaskets together, we recommend 3M Super 90 spray adhesive. Follow directions on the can but in short spray one side of each gasket to be bonded, let set for about 3 minutes. Then carefully start at one end making sure they are lined up and work your way across the gasket pressing them together. You may want to use some sort of dowel to keep the gaskets separated until your ready to work that area, then remove dowels one at a time.
Be careful and work slow as this stuff bonds ON CONTACT and once stuck there is no turning back!
Once gaskets are together use some pipe (rolling pin) and roll over the gasket to complete the bond.

Published torque figures for the big block wedge is 40 lb ft.

Any other questions just ask or give us a call
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