6 cylinder header question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**'68OrangeSunshine** · 03-16-2012, 08:21 AM

You may have to modify some of the spacers to fit your application. One thing you want to do is replace is the mounting pins in front of Cylinder #1 and behind Cylinder #6 with either cap screws [bolts] or threaded studs. They will back out with WD-40 and a Vice Grips. They are threaded 3/8-16 UNC. Headers are less likely to leak that way. You may want to use all new bolts, or 3/8-16--3/8-24 long studs with securing nuts. The stock fasteners may not fit with the headers. What headers are you using?

03-16-2012, 08:21 AM	#3
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,564	Re: 6 cylinder header question You may have to modify some of the spacers to fit your application. One thing you want to do is replace is the mounting pins in front of Cylinder #1 and behind Cylinder #6 with either cap screws [bolts] or threaded studs. They will back out with WD-40 and a Vice Grips. They are threaded 3/8-16 UNC. Headers are less likely to leak that way. You may want to use all new bolts, or 3/8-16--3/8-24 long studs with securing nuts. The stock fasteners may not fit with the headers. What headers are you using? __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.