Teflon or silicone?

tommy d · 01-05-2012, 10:11 PM

What do you guys prefer to use on BB Chevy head bolts? I know....I know......another stupid Ford guy!

DW · 01-05-2012, 10:15 PM

Teflon !!!
From one FORD guy to another.

pmrphil · 01-05-2012, 10:50 PM

Head bolts - teflon paste.
Head studs - whole 'nuther story

voltdr · 01-06-2012, 12:04 AM

Permatex 3.

Adger Smith · 01-06-2012, 12:57 AM

Teflon seals well,but alters the torque reading. Permatex 300 (aviation)

Bill Baer · 01-06-2012, 12:35 PM

I have used both permatex and teflon paste for the threads in the deck surface. Both work.
If you can afford them I think studs are a much better way to go, as the head bolts tend to corrode where the are inside the water jacket and sometimes they ruin the threaded hole in the block when you remove them.

Alan Roehrich · 01-06-2012, 01:07 PM

ARP teflon sealant works well on head bolts. I do run studs in anything where the rules allow it, that solves head bolt problems permanently. Changing to studs from bolts will likely have an effect on how round the cylinder bore is with the heads torqued. If the block was bored/honed with torque plates, that does matter.

tommy d · 01-06-2012, 09:20 PM

Thanks for the reply's.

01-05-2012, 10:11 PM	#1
tommy d Senior Member Join Date: Oct 2010 Location: Indiana Posts: 830 Likes: 1,613 Liked 359 Times in 135 Posts	Teflon or silicone? What do you guys prefer to use on BB Chevy head bolts? I know....I know......another stupid Ford guy!

01-05-2012, 10:15 PM	#2
DW Member Join Date: Oct 2006 Location: Otsego,Michigan Posts: 101 Likes: 0 Liked 0 Times in 0 Posts	Re: Teflon or silicone? Teflon !!! From one FORD guy to another.

01-05-2012, 10:50 PM	#3
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 460 Likes: 1,811 Liked 348 Times in 152 Posts	Re: Teflon or silicone? Head bolts - teflon paste. Head studs - whole 'nuther story __________________ Phil Molski PMR Performance S/C 1623

01-06-2012, 12:04 AM	#4
voltdr Senior Member Join Date: Jan 2008 Location: Texas Posts: 706 Likes: 77 Liked 100 Times in 51 Posts	Re: Teflon or silicone? Permatex 3.

01-06-2012, 12:57 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Teflon or silicone? Teflon seals well,but alters the torque reading. Permatex 300 (aviation) __________________ Adger Smith (Former SS)

01-06-2012, 12:35 PM	#6
Bill Baer Senior Member Join Date: Jul 2007 Location: Nothern IL Posts: 596 Likes: 1 Liked 1 Time in 1 Post	Re: Teflon or silicone? I have used both permatex and teflon paste for the threads in the deck surface. Both work. If you can afford them I think studs are a much better way to go, as the head bolts tend to corrode where the are inside the water jacket and sometimes they ruin the threaded hole in the block when you remove them. __________________ Bill Baer 3391 SC, 339B SC, QR

01-06-2012, 01:07 PM	#7
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,118 Likes: 1,573 Liked 1,837 Times in 417 Posts	Re: Teflon or silicone? ARP teflon sealant works well on head bolts. I do run studs in anything where the rules allow it, that solves head bolt problems permanently. Changing to studs from bolts will likely have an effect on how round the cylinder bore is with the heads torqued. If the block was bored/honed with torque plates, that does matter. __________________ Alan Roehrich 212A G/S

01-06-2012, 09:20 PM	#8
tommy d Senior Member Join Date: Oct 2010 Location: Indiana Posts: 830 Likes: 1,613 Liked 359 Times in 135 Posts	Re: Teflon or silicone? Thanks for the reply's.

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