1984 intake manifold bolts
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Intermediate
Joined: May 2019
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From: York, PA
1984 intake manifold bolts
My dad has a 1984 fxr, have a super e carb and manifold that I am wanting to put on the bike. Have everything except for the four manifold flange to head bolts. My question is what size are these for bolts... 3/8-16x what length. Due to the 84-89 years having the compliance intakes and I'm replacing it with the s&s manifold I'm not sure which sized bolts should be used. Online I get the kit option of 84-89 which come with I think 7 bolts (guessing the compliance intakes needed more than 4), 90-94 manifold bolts and 95-99 bolts. Thanks
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
My dad has a 1984 fxr, have a super e carb and manifold that I am wanting to put on the bike. Have everything except for the four manifold flange to head bolts. My question is what size are these for bolts... 3/8-16x what length. Due to the 84-89 years having the compliance intakes and I'm replacing it with the s&s manifold I'm not sure which sized bolts should be used. Online I get the kit option of 84-89 which come with I think 7 bolts (guessing the compliance intakes needed more than 4), 90-94 manifold bolts and 95-99 bolts. Thanks
https://shop.suburbanharley.com/oem-...0080-H070017/y
Thread Starter
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Intermediate
Joined: May 2019
Posts: 26
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From: York, PA
Thing is, whoever installed the manifold before my dad purchasing the bike either didn't install the bolts or they vibrated out somehow. I took it for a ride yesterday to check everything over. Looked down and saw the flanges flopping around missing the bolts. It still runs good somehow seeing as there is obviously a ton of air leakage around the flanges
Last edited by Tsmith57; May 19, 2020 at 02:24 PM.
Thread Starter
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Intermediate
Joined: May 2019
Posts: 26
Likes: 1
From: York, PA
Part number 2 in this diagram
https://shop.suburbanharley.com/oem-...0080-H070017/y
https://shop.suburbanharley.com/oem-...0080-H070017/y
part #6 WASHER, 21/64 X 33/64 X 1/16
Those are for the oem compliance manifold, are they still the correct ones for the metal s&s manifold??
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
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From: Haslet Texas
I don't remember either of my kits coming with new flange bolts.
Then again it's been a while since I bought them so you may be right.
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Dirt don't hurt
Joined: Jan 2011
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From: Haslet Texas
If I were you I'd get new cap head bolts for use with the S&S stuff.
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
If Doc is right then use the ones in the kit if he isn't get some bolts to match the hex head you have but get them with a cap head instead of hex.
I hope this helps.