The Stovebolt Site Forums The Shop Area Engine Shop Help on manifold clamps?

Can someone verify for me the layout of clamps holding the manifolds to a 216 block? Just got my engine back from the machine shop, and I have 4 long clamps and 1 short one, which leaves me shy on one hole - think I'm missin' a short clamp. Not sure if the other short one just used a flat washer maybe?!

Here's what I think, from front to back:

1. STUD
2. SHORT CLAMP
3. LONG CLAMP
4. LONG CLAMP
5. LONG CLAMP
6. LONG CLAMP
7. SHORT CLAMP
8. STUD

Thanks all,

-Michael

Yes, you have the layout correct. A washer wouldn't work very well, as it will more liley bend when tightened that actually hold proper tension on the manifold, which can/will lead to a leak. You can, however, make a suitable replacement (if you can't find the missing one) using 1/4" bar stock. Use the short one you have as a template to get the shape right and to get the hole location correct. That will be plenty stiff enough to maintain proper sealing tightness.
Another trick to help prevent leaks in the exhaust manifolds is to replace the end studs with either a bolt or a short stud and nut. This provides extra clamping force to the exhaust manifold ends.

Thanks, Bill, you're an ace. Good idea about the end studs, and the bar stock, but I'm too much of an originalist to fake it. I'll just wait 'till my buddy turns the other way, and snag a clamp off his truck . . .

-Michael

And be sure to retighten after a couple hundred miles.

I see manifolds on ebay a lot. You might search ebay and contact the sellers to see if they have the missing part you need. Just a thought.