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plenum bolts

Chris_B

By Chris_B,
in General Discussion Area

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Chris_B Wrench Monkey

Chris_B

Posted
Posted

I need to replace the 6 allen bolts that attach the plenum to the intake on a monsoon 350 due to corrosion.  Anyone know if they are stainless or merely zinc coated (ordering from fastenal)?

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Imracin68j A Decent Third

Imracin68j

Posted
Posted (edited)

I just powdercoated the top.  You might break the bolts taking them out. I broke one off in the intake.  It sucked as I ended up taking off the intake.  The intake gaskets suck in the monsoon.  They are plastic.  I replaced with a race vortex gasket and siliconed.around the water ports.  Go to a bolt shop and get stainless.  Take note of the lenght.  I had to trim 1/4 of the tip off so it didn't bottom out. Also, you can't torque stainless as much as grade 5 or 8.  Only put about 15lbs on the bolts. Same goes with intake if u end up pulling those.  

Edited by Imracin68j
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