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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
GM LS2 LS6 Gen III Gen IV Cylinder Head 243 Single Rebuildable Head CoreCondition: USED REBUILDABLE CORE The GM 12564243 Cylinder Head is engineered from high quality aluminum alloy and designed to support Generation III V8 engine applications. It is commonly used in trucks vans SUVs and performance vehicles delivering enhanced combustion efficiency with its cathedral intake port design. Cross referenced across multiple GM LS series applications this cylinder head is noted for durability and precise engineering in
Condition: USED/REBUILDABLE COREThe GM 12564243 Cylinder Head is engineered from high-quality aluminum alloy and designed to support Generation III V8 engine applications. It is commonly used in trucks vans SUVs and performance vehicles delivering enhanced combustion efficiency with its cathedral intake port design. Cross-referenced across multiple GM LS series applications this cylinder head is noted for durability and precise engineering in motorsport and everyday driving conditions.
Part Number: 12564243
Manufacturer: GM
Weight: 26.0000 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
4.4 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Impressive Set of 4 King Pillows – Comfort Meets Quality
Color: Black, Size: King (Pack of 4), Color: Black, Size: King (Pack of 4)
Impressive Set of 4 King Pillows – Comfort Meets Quality
I recently upgraded to this 4-pack of king-size pillows (20 x 36 inches), and they’ve been a fantastic addition to the bedroom. Certified by Oeko-Tex, they’re suitable for all sleep positions—whether you’re a side sleeper like me or prefer your back or stomach.
The feel strikes a perfect balance between soft and supportive. The microfiber filling cushions your head and neck without going flat, so I wake up without the usual stiffness. They bounce back quickly after use and keep their shape well—just give them a quick fluff when needed, and they’re good to go. They do need about a day to fully expand once unboxed, but that’s expected.
The design also deserves a mention. The subtle stripe pattern gives the pillows a clean, upscale look—definitely not your average basic pillow. They’d make a solid gift, too.
Cleaning is easy: toss them in the washer on a gentle cycle with cold water, then either air dry or tumble on low. No hassle.
If you’re looking for a dependable set of king-size pillows that feel great and look sharp, these are worth it.
I also took a picture of it next to a standard pillow so that you could see the difference in the size from King to standard. Hope that helps, overall definitely buy these pillows if you are hesitant there is no need to be, these pillows are perfect in my opinion
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Reviewed in the United States on August 2, 2025
★★★★★ 5
High End feel.
Color: White, Size: Queen (Pack of 4)
I bought this because I needed to replace old pillows. After using it for a few day I liked that they stayed fluffy and cool all night. My guests loved them too! The quality feels high end. I would recommend it for anyone that likes high end feel without the the high end price.
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Reviewed in the United States on May 21, 2026
★★★★★ 4
Comfortable pillows
Color: White, Size: King (Pack of 2)
I bought the king size and they are like a small body pillow. They’re soft n squishy which I like but yet provide the right amount of support. I’ve bought these twice and the 2nd set seemed a little less filled than the first but still comfortable. I would buy again.
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Very large and comfortable.
Color: White, Size: Standard (Pack of 2)
Large with great cushioning effect. Ordered this twice because they are such a good value.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Price
Color: White, Size: Standard (Pack of 2)
Love the new pillows! Even though there smaller than my last larger pillows. I would recommend these pillows if you do just want a smaller fluffy ones.
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Reviewed in the United States on June 9, 2026