BBC Main Studs

brian schuetta · 08-14-2017, 12:03 PM

Found a 0.030 over 454 2-bolt block with ARP main studs already installed. The studs are hard to turn out and I thought ARP says to install them hand tight into the block without bottoming them and not use loctite or anything to hold them in. So my question is will those studs being installed like that a problem or should we just check the crank bore alignment? Thanks ahead of time guys.

rx dealer · 08-14-2017, 12:41 PM

Very possibly loctite red 277. you will see it on the threads once you undo one. Luke SS 311

carl hinkson · 08-14-2017, 02:03 PM

Quote:

Originally Posted by brian schuetta

Found a 0.030 over 454 2-bolt block with ARP main studs already installed. The studs are hard to turn out and I thought ARP says to install them hand tight into the block without bottoming them and not use loctite or anything to hold them in. So my question is will those studs being installed like that a problem or should we just check the crank bore alignment? Thanks ahead of time guys.

The newer stud kits are bullet nosed on the bottom so that bottom out. The old ones I just put them in finger tight.

How would you check crank bore alignment ??

If those were installed the block should be align honed as the instructions say.

brian schuetta · 08-14-2017, 03:14 PM

Honestly Carl I would put my faith in the shop that will check the block for cracking to check the align bore condition. Do you feel the studs being hard to turn out is a problem?

brian schuetta · 08-14-2017, 03:18 PM

I try to snag every 454 that comes my way but lately there is more and more junk being put out for sale. Guess they are getting scarce.

carl hinkson · 08-14-2017, 03:29 PM

Quote:

Originally Posted by brian schuetta

Honestly Carl I would put my faith in the shop that will check the block for cracking to check the align bore condition. Do you feel the studs being hard to turn out is a problem?

No not really they may have been loctited in place at one time.

Only way to check alignment is to run a line hone through the mains as that don't lie.

Biggest problem I see wit old 454 block is worn out lifter and guys try to put roller lifters in worn out bores it does not take much time to ruin a set of lifters. Other problem is the lifter bores are to short . I bush them and in most cases go to .904 and leave the bushing appox. .250 higher then the casting.

Eman · 08-15-2017, 10:07 PM

ARP catalog says to install finger tight with loctite, then install the caps before the loctite dries.

08-14-2017, 12:03 PM	#1
brian schuetta Member Join Date: Apr 2005 Location: san antonio tx Posts: 255 Likes: 5 Liked 28 Times in 15 Posts	BBC Main Studs Found a 0.030 over 454 2-bolt block with ARP main studs already installed. The studs are hard to turn out and I thought ARP says to install them hand tight into the block without bottoming them and not use loctite or anything to hold them in. So my question is will those studs being installed like that a problem or should we just check the crank bore alignment? Thanks ahead of time guys.

08-14-2017, 12:41 PM	#2
rx dealer Member Join Date: Mar 2007 Location: Lake Orion, Michigan Posts: 336 Likes: 9 Liked 53 Times in 13 Posts	Re: BBC Main Studs Very possibly loctite red 277. you will see it on the threads once you undo one. Luke SS 311

08-14-2017, 03:14 PM	#4
brian schuetta Member Join Date: Apr 2005 Location: san antonio tx Posts: 255 Likes: 5 Liked 28 Times in 15 Posts	Re: BBC Main Studs Honestly Carl I would put my faith in the shop that will check the block for cracking to check the align bore condition. Do you feel the studs being hard to turn out is a problem?

08-14-2017, 03:18 PM	#5
brian schuetta Member Join Date: Apr 2005 Location: san antonio tx Posts: 255 Likes: 5 Liked 28 Times in 15 Posts	Re: BBC Main Studs I try to snag every 454 that comes my way but lately there is more and more junk being put out for sale. Guess they are getting scarce.

08-15-2017, 10:07 PM	#7
Eman Member Join Date: May 2014 Location: E TN Posts: 441 Likes: 14 Liked 105 Times in 60 Posts	Re: BBC Main Studs ARP catalog says to install finger tight with loctite, then install the caps before the loctite dries.