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Mod | | | Forums66 Topics128,132 Posts1,056,379 Members48,441 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2019 Posts: 204 'Bolter | | 'Bolter Joined: Sep 2019 Posts: 204 | Is there a trick to installing the manifolds without a helper? Everytime I think I have it something moves or the intake centering ring will pop out of place. I even entertained the idea of spot welding them in place which I quickly decided against, made me smile though. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | You might want to mention make, year, model truck/engine/manifold? | | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | The Manifold should hang on the two studs located at both ends. As for the rings, gently expand them so there is a little spring pressure holding them into the manifold. Mike B  | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | If it is a 216/235/261 manifold-assembly, I'll offer other suggestions.
This forum now states/supports 1916-1987 trucks (and, just about any engine).
One possible problem with 216/235/261 manifolds are the alignment rings being too "wide" due to the mating surfaces on the head and/or manifold-assembly having been "planed" for a flat-fit/match. | | | | | Joined: Feb 2004 Posts: 29,811 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,811 | Try removing the alignment studs on both ends of the head and replacing them with 3/8" bolts a little over an inch long with the heads cut off. Once the manifold is installed, you can replace them with the short dowels if you cut a screwdriver slot in the short ones.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Make sure to just snug up the inter manifold bolts, tighten up the bolts to the head before tightening the inter manifold bolts, last.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2019 Posts: 204 'Bolter | | 'Bolter Joined: Sep 2019 Posts: 204 | Thanks for the ideas guys. I was to the point where I was going to get my mini sledge and start swinging!!! All my friends have died so I'm having to do everything alone. I need to grow a few more arms. Lol | | | | | Joined: Feb 2004 Posts: 29,811 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,811 | You could try making new friends, also! The problem with that ides is finding anyone younger than 40 who wants to do manual labor, or hang out with an old geezer. All their "friends" seen to be on the social media platform this forum doesn't like! Good move, John- - - -I agree completely!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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