Header Mount Holes Not Lined Up

Joined
Feb 25, 2019
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718
Location
San Clemente, CA
Trying to mount a header to my 1970 and it doesnt seem like I can get the mounts to line up. You can see by looking at the far let and right mounts are too far outward and cant be adjusted to make it so the washers exert force on them.

Any ideas? My only thought is getting some larger washers (or making some) and making them odd shaped so they don't interfere with the intake manifold.

IMG_3073 (1).jpg
IMG_3074 (1).jpg
 
Joined
Feb 25, 2019
Messages
718
Location
San Clemente, CA
here is a zoomed out pic

IMG_3081 (1).jpg
 
Joined
May 15, 2008
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4,005
Location
Phoenix
That's pretty common fitment. I made custom washers to extend and cover more of the header. They work great so far.
 

pjohnson

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Jan 15, 2003
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2,950
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Idaho
I changed all the studs to the later model larger version (12mm?) and also a bit longer. Made a spacer by cutting a stock washer to fit which made the manifold and header the same 'thickness'. Then I used a larger washer that covered both flanges better and used a flange nut for better clamping force. All of this with a Remflex gasket.

I purchased the hardware from Belmetric.com
 
Joined
Feb 25, 2019
Messages
718
Location
San Clemente, CA
Thanks everyone. Had a hunch it was just the normal pains of aftermarket parts. Thanks for the creative ideas to fix.
 

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