Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

Breslin header bolt what size?

Thread Tools
 
Search this Thread
 
Old Jul 20, 2005 | 01:10 PM
  #1  
Roads88's Avatar
Thread Starter
Member
 
Joined: May 2002
Posts: 206
Likes: 0
From: Elk Grove, CA
Car: 1988 Pontiac Trans-AM
Engine: TPI 350 (5.7L)
Transmission: 700R4
Breslin header bolt what size?

Hi...I'm running a 88 T/A, 350 with hooker 2055 headers and want to replace the Header bolts with "Breslin Split Locks"

If someone has a set of these on a simular car can you give me the proper length or better yet your part number.

Called summit and that guy really didn't know.

Its been over 105 degrees outside and finding time when the motor is cool is a PITA. So I have not pulled a bolt to check the length.

The works going to be done by a shop were its cool


Thanks

Last edited by Roads88; Jul 20, 2005 at 05:41 PM.
Reply
Old Jul 20, 2005 | 04:25 PM
  #2  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I used 3/8" x 1" regular header bolts. I don't know if the Breslins require a different length.
Reply
Old Jul 20, 2005 | 05:40 PM
  #3  
Roads88's Avatar
Thread Starter
Member
 
Joined: May 2002
Posts: 206
Likes: 0
From: Elk Grove, CA
Car: 1988 Pontiac Trans-AM
Engine: TPI 350 (5.7L)
Transmission: 700R4
Thanks...

were you running the 2055's?


I may just stay up latter tonight and pull a bolt
Reply
Old Jul 20, 2005 | 09:50 PM
  #4  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Just reinstalled them after Jet Hot onto the new 350 shortblock last week.
Reply
Old Jul 20, 2005 | 11:20 PM
  #5  
Roads88's Avatar
Thread Starter
Member
 
Joined: May 2002
Posts: 206
Likes: 0
From: Elk Grove, CA
Car: 1988 Pontiac Trans-AM
Engine: TPI 350 (5.7L)
Transmission: 700R4
I pulled one of the bolts and it was 3/4" so I ordered the 3/8" X 3/4". Summit part # BPP-600-076.

When the package arrives I will bull the bolt again and make sure it fits.

My header bolts came with the headers so this should be correct.
"Should " being the oppertive word.
Reply
Old Jul 21, 2005 | 12:21 AM
  #6  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
They should be okay. The 1" just reach farther into the bolt hole, grabbing more thread. That's why I used them rather than the supplied 3/4".
Reply
Old Sep 20, 2005 | 12:22 PM
  #7  
luvofjah's Avatar
TGO Supporter
20 Year Member
iTrader: (2)
 
Joined: Feb 2003
Posts: 2,498
Likes: 20
From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Question... I was told by Hooker that the 2055's come with 3/4 inch bolts... but I also have my 2055's Jet Hot coated & since this does add to the thickness some, I would prefer to use the 1 inch bolts... and as you said, more thread to grab... I shouldn't have a problem bolting these into my 91 305 TPI?

Rafael
Reply
Old Sep 20, 2005 | 02:28 PM
  #8  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
After I got mine running I discovered one bolt had punched through the back of the bolt hole into the water jacket. That's with World heads, though.

Check hole depth first, but you shouldn't have any problem with the 1".
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
20
Nov 14, 2015 12:02 AM
toronto formula
Engine/Drivetrain/Suspension Parts for Sale
15
Nov 10, 2015 06:17 AM
Wvcamaro
Exhaust
9
Sep 4, 2015 08:38 PM
bamaboy0323
Tech / General Engine
25
Sep 3, 2015 06:07 AM
knight72
Engine/Drivetrain/Suspension Wanted
0
Aug 10, 2015 09:32 PM




All times are GMT -5. The time now is 10:35 PM.