


Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor)COMETIC StreetPro Kits cater to the budget minded street rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. StreetPro gasket kits are sold as a top end kits and bottom end kits. Purchase both top and bottom end kits for a total engine rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad. This Part Fits: Year Make Model
Quick Dispatch:
Your Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Cometic Street Pro GM 1999-05 6.0L LS Series Gen III 4.100 Top End Kit (Truck Motor) ships.
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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
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4.4 ★★★★★
Based on 1142 reviews
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Product Reviews
★★★★★ 1
Poor quality.
Color: Grey
This is a waste of money. No communication from seller. It took super long to receive it and when I got it , it was a big disappointment. This is a junk.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Chromed out looks good
The price was a beatable installment easy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2021
★★★★★ 1
Does not fit
Fitment is horrible, don’t waste your money. Tabs are already broken upon receiving. Does not hold on to hood.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025
★★★★★ 3
Fit is ok
They are a definite improvement from my original 22 year old grills but they have some clear differences in quality of the chroming, if you compare oem to these side by side the oem grills look smoother. also they don't fit great at least not on my car, albeit with a bit of nudging they fit pretty close to the originals. Overall not bad for something that is a quarter of the price of the oem part
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Reviewed in the United States on July 9, 2022
★★★★★ 5
smoke free
i like it . is nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2021
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