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| | | Chevy bolts sizes | Joined: Apr 2004 Posts: 2,027 Likes: 51 veteran | OP veteran Joined: Apr 2004 Posts: 2,027 Likes: 51 | I'm re-assembling my 79 chevy G30 at the moment after a restoration. With the van having been repainted the old bolt heads are looking kinda nasty so I want to replace them with new stainless/zinc plated bolts where appropriate. What are the typical thread sizes used in my van.Being in Ireland imperial bolts are a bit harder to find and I'll probably order them online.
79 chevy G30 cobra camper conversion. | | | Re: Chevy bolts sizes | Joined: Apr 2003 Posts: 7,662 Likes: 2 carpal tunnel | carpal tunnel Joined: Apr 2003 Posts: 7,662 Likes: 2 | A trick I use all the time is.Use a piece of cardboard punch holes in it insert bolts /screws.paint the heads with what ever color you want. Let them dry. Surprisingly the paint will remain on the heads od the bolts and will survive the install,reassembly very well.....
......Wookee
Last edited by wookee; June 23rd 2014 10:06 am. Reason: fat fingers
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| | | Re: Chevy bolts sizes | Joined: Apr 2004 Posts: 2,027 Likes: 51 veteran | OP veteran Joined: Apr 2004 Posts: 2,027 Likes: 51 | Hmm not a bad idea wookee. But there's still a few I'd like to replace. I'm gonna bring a bag of assorted bolts to a fasteners suppliers tommorrow and see what I can get.
79 chevy G30 cobra camper conversion. | | | Re: Chevy bolts sizes | Joined: Aug 2012 Posts: 193 member | member Joined: Aug 2012 Posts: 193 | Some handy engine bolt sizes here...
Last edited by Blag; June 24th 2014 10:00 am.
Kevin | | | Re: Chevy bolts sizes | Joined: Aug 2012 Posts: 193 member | member Joined: Aug 2012 Posts: 193 | Also, I got some different imperial sized bolts from MacB in Cork a while back when I was replacing the bolts on the engine.
Here's what they currently have in stock. Not sure of the grade, can check if you wish, but all are Zn plated.
UNC ¼ x 1/2 , 5/8, ¾, 1, 1 1/4 , 1 ¾ , 2 5/16 x ¾, 7/8, 1, 1 ¼, 2 3/8 x ¾, 1, 1 ¼, 1 ½, 1 ¾ , 2 ¼ ,2 ½ ½ x 2, 2 ¼, 2 1/2 , 3 ½, 3 3/4 , 4 ½
UNF 5/16 x ¾ 3/8 x ¾, 2 ½
Kevin | | | Re: Chevy bolts sizes | Joined: Apr 2004 Posts: 2,027 Likes: 51 veteran | OP veteran Joined: Apr 2004 Posts: 2,027 Likes: 51 | Cheers Kevin that should help, I managed to get some of what I need today at Dublin Bolt and Nut Co'.
79 chevy G30 cobra camper conversion. | | | Re: Chevy bolts sizes | Joined: Mar 2006 Posts: 1,695 veteran | veteran Joined: Mar 2006 Posts: 1,695 | Starting in the mid to late 70s, Chevy (and the rest of GM and other car companies as well) started using some metric bolts along with the standard. For quite a few years, you needed both standard and metric tools to work on your vehicle. Both my 91 and my 95 Chevy Vans still had a mix of metric and standard bolts throughout. RipperServing NYC/LI 347-303-7403 | | | Re: Chevy bolts sizes | Joined: Apr 2004 Posts: 2,027 Likes: 51 veteran | OP veteran Joined: Apr 2004 Posts: 2,027 Likes: 51 | Mines a 79 I have used both metric and and imperial sockets on various bolts but allways thought that was just down to the crossover between the two (1/2" = 13mm etc). I presumed all the threads were either UNC or UNF.
79 chevy G30 cobra camper conversion. | | | Re: Chevy bolts sizes | Joined: Aug 2008 Posts: 18,213 Likes: 2 Supreme Master | Supreme Master Joined: Aug 2008 Posts: 18,213 Likes: 2 | What's the lug pattern on a 66 GMC I need a wheel
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Last edited by Ripper; July 11th 2014 2:18 am.
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