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Bolts for intake manifold


macdonjo

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Any idea where I could get the bolts that go into the intake manifold? My boat came with some that are a bit too long and attached by washers that don't fit the holes.

After measuring it all out, they are:

5/16 thread

4.5 inch long

The head fits into a hole that is 1/2 inch.

Edited by macdonjo
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15 minutes ago, macdonjo said:

Any idea where I could get the bolts that go into the intake manifold? My boat came with some that are a bit too long and attached by washers that don't fit the holes.

After measuring it all out, they are:

5/16 thread

3.5 inch long

The head fits into a hole that is 1/2 inch.

Ace, Lowes, HomeDepot, any hardware store  should have them

Napa or most automotive stores

Fastenal 

 

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If you get standard bolts, I would paint them for corrosion resistance, you can get them with a corrosion coating or preferably get stainless ones, make sure to torque correctly.  McMaster Carr will have what you need if a local hardware store does not.

Edited by Woodski
  • Like 3
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3 hours ago, macdonjo said:

2015 and it's a 350 monsoon

So you are talking about the allen/hex socket head bolts? Not going to find them at the hardware store.  Funny they are too long.  Wonder if the plenum gasket is missing. 

Edited by oldjeep
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