ARP Chevy LS 3/8in Flange Hex Header Bolt Kit

4.9 4.9 out of 5 stars | 561 ratings

Price: 37.64

Last update: 01-04-2025


About this item

ARP Header Bolt Kit GM LS-Series P/N 134-1102
Part number: ARP-134-1102
Fit type: Vehicle Specific
Package Weight: 0.6 pounds

Product information

Technical Details


Top reviews from the United States

Nick
5.0 out of 5 stars Awesome!
Reviewed in the United States on July 13, 2019
Installed on an 09 G8 GT, fit perfect, and of course stellar quality. Perfect for anyone doing headers or replacing factory manifold bolts on LS based blocks. It’s also a lot more convenient and easier to use a 10mm wrench in the spaces since the head is smaller on these. With them being smaller it even stopped the bolt from contacting the spark plug heat shield
Customer image
Nick
5.0 out of 5 stars Awesome!
Reviewed in the United States on July 13, 2019
Installed on an 09 G8 GT, fit perfect, and of course stellar quality. Perfect for anyone doing headers or replacing factory manifold bolts on LS based blocks. It’s also a lot more convenient and easier to use a 10mm wrench in the spaces since the head is smaller on these. With them being smaller it even stopped the bolt from contacting the spark plug heat shield
Images in this review
Customer image
Pete
5.0 out of 5 stars No complaints about ARP!
Reviewed in the United States on April 27, 2024
Does what it needs to do at a decent price.
James Jenkins
5.0 out of 5 stars Worked perfect
Reviewed in the United States on June 13, 2024
Perfect fit for my LS6.2 with speed engineering block hugger headers.
Ramrod
5.0 out of 5 stars So Far so good!
Reviewed in the United States on December 31, 2023
I have a 1999 Siverado Z71 and had the famed stock bolt heads popped off 4 bolts. Bought new manifolds by Dorman who made a fix by cutting the brackets in two places on left and one place on right,,,that and these ARP bolts and I should never have to worry about that again. Had this fixed in I believe Aug. 2022...
James T
5.0 out of 5 stars Upgrade for 2006 GMC Sierra 5.3L with Longtubes
Reviewed in the United States on September 15, 2023
Installed some Speed Engineering 1 3/4" Long tube headers and ORY on my 2006 GMC Sierra 5.3L with 94k miles and wasnt putting the oem or replacement oem bolts back in. ARP has always been a solid Grade 8 Header Bolt. Looks great, installs easy. Does the job.
Customer image
James T
5.0 out of 5 stars Upgrade for 2006 GMC Sierra 5.3L with Longtubes
Reviewed in the United States on September 15, 2023
Installed some Speed Engineering 1 3/4" Long tube headers and ORY on my 2006 GMC Sierra 5.3L with 94k miles and wasnt putting the oem or replacement oem bolts back in. ARP has always been a solid Grade 8 Header Bolt. Looks great, installs easy. Does the job.
Images in this review
Customer image
Mike R.
5.0 out of 5 stars Best bolts to use
Reviewed in the United States on February 29, 2024
These bolts will outlast the vehicle
Angel S.
5.0 out of 5 stars Used for headers on 99 5.3 LM7 Chevy
Reviewed in the United States on September 9, 2023
Used these for my 99 Chevy 5.3 (lm7) when I did long tube headers. They were great and fit great as well, the wrap got in the way but that’s on my part and moving it to the side allowed them to sit great. I would 100% recommend these unless you want to end up removing broken bolts.
John Kromenacker
5.0 out of 5 stars The only bolts I’ll use for exhaust
Reviewed in the United States on November 2, 2023
100% hands down the best.

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