SBC header studs Question
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
SBC header studs Question
I order some header studs from ARP, nice product only the nuts that came with them will not clear the side of the header tubes, I have seen 3/8 nuts that measure less than 9/16 acreoss the flats in the past, maybe a speacialty item, any one had simuliar experieces with studs for mounting headers to the heads? I may have to go back w/ small hex head bolts? really don't want to go digging up the tubes. Thanks
Race Director
Joined: May 2006
Posts: 18,689
Likes: 2,571
have you considered the round bolts with an allen key in the center?
http://www.summitracing.com/parts/mr...make/chevrolet
http://www.summitracing.com/parts/mr...make/chevrolet
Racer
Joined: Jun 2009
Posts: 393
Likes: 3
Stainless allen head. Did have to cut one to make a stud for #8 where a bolt will not work. Dont hack up the headers to make something work. Just take a few extra minutes and do it the right way. I,ve see to many hack up there flanges,use vise grips etc. 
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I order some header studs from ARP, nice product only the nuts that came with them will not clear the side of the header tubes, I have seen 3/8 nuts that measure less than 9/16 acreoss the flats in the past, maybe a speacialty item, any one had simuliar experieces with studs for mounting headers to the heads? I may have to go back w/ small hex head bolts? really don't want to go digging up the tubes. Thanks
page 58
http://www.arp-bolts.com/pages/viewcatalog.shtml
As you can see I had to even grind down the rounded bottom of few of these 5/16ths to clear 1 3/4 hooker S/C
this is my new 434 ci to replace the 383
this is my older 383 with AFR 210 heads
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
You have to get the ARP universal 5/16th 100-1109 stud kit.
page 58
http://www.arp-bolts.com/pages/viewcatalog.shtml
As you can see I had to even grind down the rounded bottom of few of these 5/16ths to clear 1 3/4 hooker S/C
this is my new 434 ci to replace the 383
this is my older 383 with AFR 210 heads
page 58
http://www.arp-bolts.com/pages/viewcatalog.shtml
As you can see I had to even grind down the rounded bottom of few of these 5/16ths to clear 1 3/4 hooker S/C
this is my new 434 ci to replace the 383
this is my older 383 with AFR 210 heads
Thanks Mike
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
Stainless allen head. Did have to cut one to make a stud for #8 where a bolt will not work. Dont hack up the headers to make something work. Just take a few extra minutes and do it the right way. I,ve see to many hack up there flanges,use vise grips etc. Attachment 47708760
Thanks MIke
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The red is high temp permatex silicone. It glues the nuts in place and they never get loose. I use FelPro blue steel gaskets and they last for years and even motor changes
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Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I was competing in a points race for vintage production road racing and I couldn't miss any events
Safety Car
Joined: Sep 2012
Posts: 4,688
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From: Palm Harbor, Florida
I keep the solid roller 383 in a box as a spare. I had used it for a couple of years and I pulled it out and rebuilt it. I replaced it with a high end motown 427 sbc. I had to reinstall the 383 once when I broke the crank shaft in my 427 SBC about 6 months later. I bored it out to 434 and put in $2000 dollar crankshaft so it would never break again and installed it a few weeks later. It is really a sweet 383 that I use 7500 rpm as a red line. I was having so much fun with it, a 5 speed, and a 4.11 rearend that it was almost a shame to pull it back out.
I was competing in a points race for vintage production road racing and I couldn't miss any events
I was competing in a points race for vintage production road racing and I couldn't miss any events
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Very sad day!
90 mph and then real bad noises. Stabbed in the clutch and coasted to a stop. Loaded it on the trailer and we got home early afternoon and had the 383 in and running that eve and I was back out running the track the next morning
This is a 4 inch stroker lightweight 4340 with 350 main bearing size
90 mph and then real bad noises. Stabbed in the clutch and coasted to a stop. Loaded it on the trailer and we got home early afternoon and had the 383 in and running that eve and I was back out running the track the next morning This is a 4 inch stroker lightweight 4340 with 350 main bearing size
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
We are clear off topic, but I got screwed at the race shop that balanced my 427 sbc. Right on the crank it had a tag that said don't balance this crank with more than three holes on the rear throw. the flat rate worker caused not only my blow up , but some other sprint car 410 ci motors to save time. He got fired before my motor went and they worked with me on the rebuild. So even with the $2000 crank my loss was about $4500
oh I have an ATI 6.3/8ths
This the motor that blew apart in less than six months
oh I have an ATI 6.3/8ths
This the motor that blew apart in less than six months
Last edited by gkull; Nov 6, 2012 at 11:19 PM.
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
Thanks for the info, I am very sorry for your loss but it's the envy that really hurts !!