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Description
Chevrolet GM Industrial Marine 5.7L 350 Vortec Cylinder Head Set of 2 906 / 062Condition: NEW NEW TAKE OFF The GM 10239906 Cylinder Head is a cast iron Vortec head used widely on 5. 7L (350 cubic inch) small block Chevrolet engines from the mid to late 1990s and early 2000s. Known for improved airflow and combustion efficiency, the 10239906 casting features upgraded intake port design derived from the LT1 platform, contributing to better throttle response and horsepower over earlier designs. This cylinder head was factory
Condition: NEW / NEW TAKE OFFThe GM 10239906 Cylinder Head is a cast iron Vortec head used widely on 5.7L (350 cubic inch) small block Chevrolet engines from the mid-to-late 1990s and early 2000s. Known for improved airflow and combustion efficiency, the 10239906 casting features upgraded intake port design derived from the LT1 platform, contributing to better throttle response and horsepower over earlier designs. This cylinder head was factory-installed on a wide range of GM vehicles, including Chevrolet and GMC trucks and vans, and also marine applications like MerCruiser. Vehicles commonly equipped include Chevrolet 1500, 2500, and 3500 pickups, Express vans, Suburban, Tahoe, and GMC Savana and Yukon models powered by the 5.7L gasoline engine, both in standard and CNG configurations.
Fitment information provided with best effort, customer is ultimately responsible for fitment
Hollander Number: 306-01633
| Application | Year(s) | Engine / Notes |
|---|---|---|
| CHEVROLET 2500 PICKUP | 96-99 | 8-350 (5.7L); gasoline, from 8501 GVW |
| CHEVROLET 2500 PICKUP | 00 | 8-350 (5.7L); gasoline |
| CHEVROLET 30 VAN | 96 | 8-350 (5.7L); 30 HD |
| CHEVROLET 3500 PICKUP | 96-00 | 8-350 (5.7L); gasoline |
| EXPRESS 1500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| EXPRESS 1500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| EXPRESS 2500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| EXPRESS 2500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| EXPRESS 3500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| EXPRESS 3500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| GMC 2500 PICKUP | 96-99 | 8-350 (5.7L); gasoline, from 8501 GVW |
| GMC 2500 PICKUP | 00 | 8-350 (5.7L); gasoline |
| GMC 3500 PICKUP | 96-00 | 8-350 (5.7L); gasoline |
| GMC 3500 VAN | 96 | 8-350 (5.7L); 3500 HD |
| SAVANA 1500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| SAVANA 1500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| SAVANA 2500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| SAVANA 2500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| SAVANA 3500 VAN | 96-98 | 8-350 (5.7L); gasoline, from 8501 GVW |
| SAVANA 3500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L80E transmission |
| SUBURBAN 2500 | 96-99 | 8-350 (5.7L); gasoline |
Hollander Number: 306-01630
| Application | Year(s) | Engine / Notes |
|---|---|---|
| CHEVROLET 1500 PICKUP | 96-99 | 8-350 (5.7L); CNG |
| CHEVROLET 2500 PICKUP | 96-00 | 8-350 (5.7L); CNG |
| CHEVROLET 3500 PICKUP | 96-00 | 8-350 (5.7L); CNG |
| EXPRESS 1500 VAN | 96-02 | 8-350 (5.7L); CNG |
| EXPRESS 2500 VAN | 96-02 | 8-350 (5.7L); CNG |
| EXPRESS 3500 VAN | 96-02 | 8-350 (5.7L); CNG |
| GMC 1500 PICKUP | 96-99 | 8-350 (5.7L); CNG |
| GMC 2500 PICKUP | 96-00 | 8-350 (5.7L); CNG |
| GMC 3500 PICKUP | 96-00 | 8-350 (5.7L); CNG |
| SAVANA 1500 VAN | 96-02 | 8-350 (5.7L); CNG |
| SAVANA 2500 VAN | 96-02 | 8-350 (5.7L); CNG |
| SAVANA 3500 VAN | 96-02 | 8-350 (5.7L); CNG |
Hollander Number: 306-01629
| Application | Year(s) | Engine / Notes |
|---|---|---|
| CHEVROLET 1500 PICKUP | 96-99 | 8-350 (5.7L); gasoline |
| CHEVROLET 2500 PICKUP | 96-99 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| ESCALADE | 99-00 | |
| EXPRESS 1500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| EXPRESS 1500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| EXPRESS 2500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| EXPRESS 2500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| EXPRESS 3500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| EXPRESS 3500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| GMC 1500 PICKUP | 96-99 | 8-350 (5.7L); gasoline |
| GMC 2500 PICKUP | 96-99 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| SAVANA 1500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| SAVANA 1500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| SAVANA 2500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| SAVANA 2500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| SAVANA 3500 VAN | 96-98 | 8-350 (5.7L); gasoline, thru 8500 GVW |
| SAVANA 3500 VAN | 99-02 | 8-350 (5.7L); gasoline, 4L60E transmission |
| SUBURBAN 1500 | 96-99 | 8-350 (5.7L); gasoline |
| TAHOE | 96-99 | 8-350 (5.7L); gasoline |
| TAHOE | 00 | 5.7L |
| YUKON | 96-97 | 8-350 (5.7L); gasoline |
| YUKON | 98-99 | 5.7L |
| YUKON | 00 | 5.7L |
Part Number: 10239906
Manufacturer: GM
Weight: 91.0000 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 87 reviews
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Product Reviews
★★★★★ 5
Great alternative to wood blocks
Size: 17" x 8.5", Color: Gray, Size: 17" x 8.5", Color: Gray
So I’ve used wood over the years to level out my Class A RV’s and even with the wood sealed, there is always one side that takes a beating. I figured I would try these Camco rectangular leveling blocks and was very surprised at their strength. I’ve only used them twice, but both times the RV rolled right up with no issues. The RV sitting on those blocks in the picture is a 40’ Tiffin diesel pusher. My only issue is the dual wheel base for this big RV, is too wide to use the blocks perpendicular to the wheels, so I had to use 3 blocks parallel (see pics) for each wheel, which required me to purchase two sets. Most sites I setup up at fairly level, but this just provides that little extra height if needed.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
compact and sturdy
Size: 8.5" x 8.5", Color: Yellow
works great
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Simple and easy to use
Color: Yellow, Size: 5.5" Lift
We took a late fall trip to Branson Missouri pulling our Camper. We had to use the Camco Trailer Aid when we got to our campsite and it performed as advertised. Good sturdy product that worked as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
★★★★★ 5
A Must-have for Double-axle Travel Trailers
Color: Yellow, Size: 5.5" Lift
I moved from a diesel pusher motorhome back to a truck and Lance travel trailer. ‘Done with Diesels’ is my new motto. I wanted to check the wheel bearings and couldn’t find the proper way to jack up the side. Some people said jack here, some said jack there, and some said never to use a jack at all, so I was confused. Decided to use some of my leveling blocks and build a ramp to drive up onto and that ended in failure. Either it wouldn’t go up without spitting it out and still wasn’t high enough. I resorted to jacking it up at the spot I thought was best, but wasn’t comfortable with the entire side supported with a small bottle jack cylinder. So I ordered this and it was well worth the wait. Trailer pulls right up onto it and the other tire is ready to work on. The weight is more evenly distributed and certainly feels safer. Obviously this won’t work for a single axle, but for double axles it works for maintenance and makes tire changing a breeze. It’s as good as everyone says it is and has a permanent place in my trailer storage compartment.
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Reviewed in the United States on August 15, 2024
★★★★★ 5
Works exactly as stated with a dual axel trailer
Color: Yellow, Size: 5.5" Lift
I purchased this on a hope, I had a trip planned to pull a school trailer 2600 miles round trip and had to use my pickup truck jack if I had a tire issue. I didn't like my odds and bought this ramp hoping it would make things simpler.
My second day into driving and I had my first tire blow out. The ramp workers perfectly and I had the new tire on the trailer in 15 minutes. Later in the day, I caught a second tire on the trailer down to threads and used the ramp again to change out tires at a truck stop.
I analyzed all the "whys" as to what made the tires blow and fixed it to make the rest of my trip safe and trouble free but this ramp made things quick and easy when i needed it. I'd totally recommend this product and I'm planning to purchase another and leave it with the school trailers for future use.
Keep in mind you need at least a dual axel trailer for this to work and have a spare tire to swap to.
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Reviewed in the United States on April 1, 2026