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11-07-2004, 11:46 PM
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#1 |
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Senior Member
 
Join Date: Apr 2001
Location: Alexandria, MN
Posts: 1,462
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what'd you guys use??
what do you guys use to plug the A.I.R. tube holes in your mainifolds??? im actually in the process of a cam swap in a 305 powered caprice, ( i know not a truck but hey, its still a small block
 ) the guy a t napa told me they dont make a plug for it, but im not sure if he was sayin this cuz it is true, or because there were other customeors in the store and doin anything with smog controls could be reported.. who knows... any suggestions??? can i retap the holes for a pipe plug??? pinch the air tubes off and tack weld them shut and reinstall??? thanks in advance...--Mike
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63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's |
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11-07-2004, 11:49 PM
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#2 |
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Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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on my straight 6 i took the factory ends that thread in and cut the tube out and welded them up and screwed them back in
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's  (the family car)1993 Cherokee work ride/weekend wheeler |
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11-07-2004, 11:51 PM
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#3 |
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Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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On the 454 that I build for my dually, it seems like I used either 1/4" or 3/8" pipe plugs. Whichever size it was, they fit perfectly. You might pull a rail and compare it to pipe thread.
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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11-08-2004, 01:58 AM
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#4 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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Pipe plugs should do youl.
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal.  We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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11-08-2004, 03:19 AM
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#5 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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GEt some 1/4 NPT Allen Plugs It will look better than plain galvinized plugs But if your lookin cheapest way out Plain black pipe or galvinized plugs.
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11-08-2004, 01:03 PM
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#6 |
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Senior Member
Join Date: Apr 2001
Location: Alexandria, MN
Posts: 1,462
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well the NAPA guy said a regular pipe plug wont work... i thought pipe thread was all the same... so a allen 1/4 NPT plug will work then??? cuz i can stop at he parts place on my way home tonight...
--Mike
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63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's |
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11-08-2004, 02:13 PM
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#7 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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The guy at NAPA is wrong.
Buy 8 plugs, 1/4 N.P.T. and screw them in. I have done it many times.
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I'm on the Instagram- @Gearhead_Kevin |
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11-08-2004, 08:25 PM
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#8 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Some are differnent though But i doubt yours is Im certain its the same manifold as a camaro of same era and ive plugged them off..
My 85 was an odd size that was fine thread metric and i couldnt get a plug for that .. But it's Got Factory Steel Manifold Headers |
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11-08-2004, 08:43 PM
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#9 |
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hmm...
Join Date: Jan 2004
Location: Culver, Indiana
Posts: 1,631
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I've used pipe plugs on olds 307's for the same reason. HOlds up fine, but don't use any kind of pipe sealer goo or silicone unless you want to hear some whistling, I used the high temp silicone stuff, still melted and made a godawful whistling on a client's car.
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1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR. |
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11-08-2004, 08:45 PM
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#10 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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I put motor oil on mine and run them down with an impact No Leaks.
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