86 302 Lower Intake Manifold Bolts

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86 302 Lower Intake Manifold Bolts

fords4life
Is there anything special about these bolts or are they just standard 5/16"-18 x 2" bolts?  I'm having a hard time confirming.
1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.
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Re: 86 302 Lower Intake Manifold Bolts

Gary Lewis
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Assuming you mean the bolts that go into the head, here's what the catalog shows:



Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: 86 302 Lower Intake Manifold Bolts

fords4life
That's the one. I had read a description on a couple aftermarket sets that mentioned a smaller than standard hex head. Wasn't sure if there would be a clearance issue with a standard size head.
1986 F-150 SC 2wd 4spd 302EFI Base Model all OEM motor/trans/emissions equipment.
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Re: 86 302 Lower Intake Manifold Bolts

Gary Lewis
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It is a "washer head":

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: 86 302 Lower Intake Manifold Bolts

ArdWrknTrk
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*Flange bolt* with a reduced head is often because a socket for conventional head would not fit into a recess or some other obstruction.
It also assures clamping force is completely axial, where a washer could cock.
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.