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- USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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For Your Every Summer RSVP, with Code: SUMMER15
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
4.3 ★★★★★
Based on 2162 reviews
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Product Reviews
★★★★★ 5
Beautiful
Size: Small, Color: Black, Size: Small, Color: Black
Everything we could imagine it would be. True to size. High-quality
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Suit for Prom
Size: Large, Color: Navy Blue
My son (17) ordered this suit to wear to Prom (2 weeks before) and it was a hit! Great Quality and great fit! He even convinced a few of his friends to buy their suits here too! Would purchase again for sure!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
This is a terrific purchase.
Size: Large, Color: Navy Blue, Size: Large, Color: Navy Blue
Amazing for the price. It’s a wonderful suit fit just right for a 5’10”. 145 pound male.
The quality is surprisingly wonderful for this suit and the color is accurate. As in the picture it is a slim fit and accentuates his figure. I would highly recommend this for a purchase. (be sure to use the measurements on their description before ordering). After a steam and a press we were ready to go. The packaging was very nicely done also.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Perfect fit.
Size: Large, Color: Dark Gray
I’m 5’9”, about 180 lbs. I got an L based on the Amazon recommendation. The size chart showed the pants being a 36” which is big for me but it’s those that stretch so if you’re a 34” like me, it’ll fit perfectly. No alterations needed for me. Great fit, good looking suit, nice material. I immediately bought another and hope it fits as good as this one. Genuinely impressed.
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Pant issue
Size: X-Small, Color: Dark Navy
Except pant. Everything is good.
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Reviewed in the United States on May 19, 2026