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Description
GM Gen 6 Big Block Industrial Marine 7.4L Vortec Oval Port Cylinder HeadCondition: NEW NEW TAKE OFF The Chevrolet 12560241 Vortec Cylinder Head also known by the casting numbers 10141279 and 12560241 is designed for 7. 4L (454 cubic inches) big block engines. This part features an oval port design with a closed chamber 100cc combustion chamber and a 246cc intake runner. Highly regarded among marine enthusiasts this cylinder head supports large valves sized 2. 06 inches (intake) and 1. 72 inches (exhaust) enhancing engine
Condition: NEW / NEW TAKE OFFThe Chevrolet 12560241 Vortec Cylinder Head also known by the casting numbers 10141279 and 12560241 is designed for 7.4L (454 cubic inches) big block engines. This part features an oval port design with a closed chamber 100cc combustion chamber and a 246cc intake runner. Highly regarded among marine enthusiasts this cylinder head supports large valves sized 2.06 inches (intake) and 1.72 inches (exhaust) enhancing engine performance. The head comes with springs and valves already installed.
Part Number: 12560241
Manufacturer: GM
Weight: 40.0000 lbs
Additional Details:
Genuine OEM Parts
Please research/ensure fitment of part to your specific vehicle before purchasing. Returns because of non-fitment are accepted with a re-stocking fee, however customer is responsible for return shipping.
Shipping:
If shipping outside the contiguous 48 states is required, reach out to [email protected] to confirm shipping details.
About Us:
Custard Core Supply provides the highest quality of new, new take off, used, and core parts. We provide a variety of gas and diesel parts to our customers. Based in Dallas, TX Custard Core Supply has been in business since 1998. If you do not see a product you are looking for on our page, please reach out!
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
4.8 ★★★★★
Based on 180 reviews
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Product Reviews
★★★★★ 5
Good comfort, quality and classy
Size: 8.5, Color: Black/Ivory
’ve been wearing Cole Haan dress sneakers for work and travel, and they strike a really good balance between professional and comfortable. The biggest advantage is how lightweight they feel compared to traditional dress shoes. Most styles have sneaker-like cushioning, so you can walk or stand all day without your feet getting destroyed.
The design is also versatile and look polished enough for business casual outfits but still casual enough to wear with jeans. They work especially well in office environments where a full formal shoe feels too stiff or outdated.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
New Favorite Work Shoe
Size: 9.5, Color: Black/Ivory
These Cole Haan Grand Crosscourt Daily shoes have quickly become my new favorite work shoes. They’re incredibly comfortable right out of the box, with just the right amount of cushioning and support to get through long days on my feet.
I love that they look sleek and professional while still feeling casual enough to wear anywhere. The build quality is top-notch—durable materials and solid construction that make them feel like they’ll last a long time.
Overall, these shoes strike the perfect balance between comfort, style, and practicality. I can honestly say I look forward to wearing them every day. Highly recommend for anyone who spends a lot of time on their feet but doesn’t want to sacrifice style.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Well Made for price and style
Size: 10.5, Color: Black/Ivory
Great fit and very flexible. I also recommend buying shoe savers when purchasing this product. To help with toes wrinkles. The pair itself is stylish and very comfortable. Any purchase of this product will be greatly satisfied.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Nice shoes
Size: 11.5, Color: Black/Ivory
The are very comfortable, and look great.
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Comfortable
Size: 9.5, Color: British Tan/Ivory
Great foot support. Wore all day with not foot or back pain.
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Reviewed in the United States on April 29, 2026