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86 f350 intake manifold.

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ARM Ashby

86 f350 intake manifold.

What sealants to use on ports and China wall?

Gary Lewis

Re: 86 f350 intake manifold.

Administrator

I use a small bead of RTV around the coolant passages and on the china wall. On it I put a 3/8" bead of RTV, and some in the corners where the wall meets the head. But make SURE the china wall and the intake are CLEAN so the RTV adheres. I use brake cleaner on a rag to clean them before adding the RTV.

And I cut the heads off bolts to use as guides for the intake so you don't move it side/side or fore/aft as you lower it and mess up that RTV. But you still have to be careful that you lower it evenly as you can get it cocked on the block & heads.

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

ARM Ashby

Re: 86 f350 intake manifold.

Thank you Gary. It is a stock 460 it has studs in the corners and I have to use engine hoist for R/R. I am too old to mussel it on and off. Thanks again

Gary Lewis

Re: 86 f350 intake manifold.

Administrator

I understand! I built a 460 a few years ago and the heads were quite a challenge on the engine stand.
There's no way I could put an intake on by myself in the truck.

Gary, AKA "Gary fellow": Profile

85lebaront2

Re: 86 f350 intake manifold.

Administrator

Try a 390 intake in a 1977 F150. My son and I had to do the heads on the 1977 F150 I had owned and replaced the 300/C4 with a 390/C6. Those make a 429/460 iron intake feel light.

Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

Gary Lewis

Re: 86 f350 intake manifold.

Administrator

Yes, the FE intakes are so wide they go under the valve covers! I remember changing the 2bbl one to a 4bbl on the 390 in my 72 F250. I sat in the engine compartment and laid it in there, but then I was 25 at the time, so...

But it woke that 390 up and I didn't have any leaks, so it was a big success.

Gary, AKA "Gary fellow": Profile