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Description
Mr. Gasket Starter Bolts For GM LS Series Engines - 60941MRGOverview: The metric starter bolts for GM (General Motors) LS engines can be tough to find & there are two different styles of starters. Some starters use one long and one short bolt & the other style starter uses two longer bolts. These bolt kits come in three versions to fit these starters or a set of three bolt that will work in all applications. Zinc plated steel. Features: Starter Bolts for GM LS Series Engines Choose From (3) Bolt Sets w (2)
Overview:
The metric starter bolts for GM (General Motors) LS engines can be tough to find & there are two different styles of starters. Some starters use one long and one short bolt & the other style starter uses two longer bolts. These bolt kits come in three versions to fit these starters or a set of three bolt that will work in all applications. Zinc plated steel.
Features:
- Starter Bolts for GM LS Series Engines
- Choose From (3) Bolt Sets w/ (2) Long Bolts, Long/Short Bolts, or a Set of 3 Pieces (fits All GM LS Starters)
- Steel w/ Zinc Plating
- Knurling on Bolts - Improves Alignment of Starter
- Long Bolts are M10 x 1.5 x 113mm Long - Replaces OEM GM # 12561387, 11610633 or 11610787
- Short Bolts are M10 x 1.5 x 45mm Long – Replaces GM OEM # 12561848
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1998 - 2002 | Chevrolet | Camaro | 350/5.7 V8 | |
| 1997 - 2013 | Chevrolet | Corvette | ||
| 1998 - 2002 | Pontiac | Firebird | 350/5.7 V8 | |
| 2004 - 2005 | Cadillac | CTS | 346/5.7 V8 | |
| 2004 - 2006 | Pontiac | GTO | ||
| 2005 - 2008 | Pontiac | Grand Prix | 325/5.3 V8 | |
| 2006 - 2009 | Chevrolet | Trailblazer | 364/6 V8 | |
| 2006 - 2007 | Chevrolet | Monte Carlo | 325/5.3 V8 | |
| 2006 - 2007 | Cadillac | CTS | 364/6 V8 | |
| 2005 - 2006 | Chevrolet | SSR | ||
| 2006 - 2009 | Chevrolet | Impala | 325/5.3 V8 | |
| 2008 - 2009 | Buick | Allure | 325/5.3 V8 | |
| 2008 - 2009 | Buick | LaCrosse | 325/5.3 V8 | |
| 2009 | Pontiac | G8 | 376/6.2 V8 | |
| 2010 - 2015 | Chevrolet | Camaro | 376/6.2 V8 | |
| 2014 - 2017 | Chevrolet | SS | ||
| 2014 - 2015 | Chevrolet | Camaro | 427/7 V8 |
Specs:
| Application | GM |
|---|---|
| Brand | Mr. Gasket |
| Color | Zinc |
| Emission Code | 5 |
| Engine | GM Small Block Gen III/IV (LS Based) |
| Finish | Zinc |
| Head Style | Hex |
| Material | Steel |
| Product Type | Starter Bolts |
| Starter | OE |
| Thread Size | M10x1.5MM |
| Under Head Length | 113mm |
| Warranty | Limited 90 Day |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
No more migraines
I have suffered migraines for years. It was so bad in December 2025 that I begged my neurologist for help. He suggested several things that I was unwilling to try due to the side effects. However, he recommended I try 400 mg daily of Magnesium L Threonate. January 2026, I started the taking it. The first month only 3 migraines for the whole month after years of 3-4 migraines a week. Its May 2026 and I have only had 3 more migraines this year. I highly recommend this product for migraine prevention.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
The best Magtein I have tried thus far
I take double the dose because when I double the dose it improves my ability to pay attention and I am less distracted. Yes I have ADD but no longer take Adderall for it. Being 56 years old Magtein really improves my memory and restored it to like new by ten days of use. Shockingly It woke me up from a light sleep late evening as memories rushed in and I have been taking it ever since. I have been taking it 7 months now and over time it has slowly but surely improved my short term memory so that it also is nearly the same as before. I have seen slight improvements in working memory enough to be encouraged It may become an advancement from a historical standpoint. This is my second bottle by Teraputics. I was taking 2 bottles of NOW brand per month for my memory and concentration because it is the cheapest but when Amazon ran out Teraputics is the product I decided to try next. But I like this brand better as it seems more concentrated or I should probably say more bio-available so I decided to by it and pay the extra money over NOW brand. I just wish it were cheaper. I am hoping to ask them for a deal if I buy 20 bottles in advanced as it is a must have for me. With this second purchase they included a free bottle coupon and not a buy one get one free. Right now I am very happy to get the free bottle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2019
★★★★★ 3
Daily Intake on Label Confusing
Label was not clear regarding milligrams per pill. Title label stated 2000mgs per serving (of 4 pills), but “supplement label” states 4 pills is 144 mgs per serving as a 34% of daily value.
Very confusing. Not sure which metric to go by for daily intake.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
★★★★★ 5
Great supplement
I like the way it helps me relax to sleep and helps to keep me more focused
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 5
No diarrhea
My wife had severe diarrhea using a common type of magnesium, taken at doctor's recommendation. Doctor recommended this type, L-Threonate. Totally eliminated diarrhea problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
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