intake manifold bolts
More Turbo
Joined: Feb 2015
Posts: 508
Likes: 29
From: NE Ohio
Thanks,
-Glaser67
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
None of the 302 intake bolts pass through a coolant passage. And none pass through an intake passage to create a vacuum leak. There is a possibility of getting oil seepage up the bolt from the lifter valley, but I've never seen this happen. The only bolts that need thread sealer are the lower head bolts on 1985-up blocks and the four waterpump/timing cover bolts that are on top/bottom of the two coolant ports in the front of the block. Plus the flywheel/flexplate bolts on the later model crankshafts. The holes these thread into go through the rear flange into the crankcase area.
Elder User
Joined: Jan 2011
Posts: 567
Likes: 1
From: Northern CO
Is there anything special about the factory bolts? Having a hard time finding the intake manifold bolt kits in stock locally. Wondering if I can just grab the right size bolts at a local bolt place and use them?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
They're all 5/16NC. I don't know the length off hand. I can look in my stash tomorrow and measure them
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