G Force Performance Products

20/10/2026

G Force makes it easy to mock up a diesel engine with Swap Blocks® for the Duramax 6.6 and Cummins 4BT & 6BT diesels. Swap Blocks® are lightweight rigid mock up engines that can easily be moved in and out of your chassis by hand. They are designed to bolt to your transmission while also permitting the attachment of accessories like your oil pan, motor mounts, exhaust manifold(s), front timing cover, oil filter housing, and intake. And, because they're made of steel, you can weld with the G Force Swap Block® in place for accurate location of custom engine mounts. All of our Swap Blocks are made with our patent pending tab-and-slot design for ease of assembly and accuracy.

𝗩𝗶𝘀𝗶𝘁 𝗼𝘂𝗿 𝘄𝗲𝗯𝘀𝗶𝘁𝗲 𝗳𝗼𝗿 𝗱𝗲𝘁𝗮𝗶𝗹𝘀:
All Swap Blocks® ➡️ https://bit.ly/3B4HQJ9

19/10/2026

18/10/2026

𝗪𝗵𝗲𝗻 𝘆𝗼𝘂'𝗿𝗲 𝗿𝗲𝗮𝗱𝘆 𝘁𝗼 𝘀𝘄𝗮𝗽 𝗮 𝟱.𝟵 𝗖𝘂𝗺𝗺𝗶𝗻𝘀 𝗶𝗻𝘁𝗼 𝘆𝗼𝘂𝗿 𝟳𝟯-𝟴𝟳 𝗚𝗠 𝗞 𝗦𝗲𝗿𝗶𝗲𝘀 𝗣𝗶𝗰𝗸𝘂𝗽, 𝗹𝗼𝗼𝗸 𝘁𝗼 𝗚 𝗙𝗼𝗿𝗰𝗲 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗸𝗶𝘁 𝘆𝗼𝘂 𝗻𝗲𝗲𝗱 𝘁𝗼 𝘀𝗶𝗺𝗽𝗹𝗶𝗳𝘆 𝘁𝗵𝗲 𝗶𝗻𝘀𝘁𝗮𝗹𝗹 𝗮𝗻𝗱 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗱𝗼 𝗶𝘁 𝗿𝗶𝗴𝗵𝘁!

It includes a transmission adapter and flexplate to mate a TH400, 700R4, or 4L80E transmission to a 6BT Cummins engine. Our Cummins bolt-in 2" drop engine crossmember (or K Member) allows for proper engine placement and provides chassis strength to accommodate the added torque of the Cummins!

𝗚𝗲𝘁 𝘆𝗼𝘂𝗿 𝟭𝟮 𝘃𝗮𝗹𝘃𝗲 𝗖𝘂𝗺𝗺𝗶𝗻𝘀 𝗖𝗵𝗲𝘃𝘆 𝘀𝘄𝗮𝗽 𝗸𝗶𝘁 𝗮𝘁:
➡️ https://bit.ly/46Eh4kK








Part Number: GF-GMK3-KIT

17/10/2026

G Force offers custom motor mount kits for a number of engines. These kits are perfect for projects where there isn't a motor mount made for your chassis/engine swap. We offer several versions to fit different engines. You cut, fit, and weld the motor mounts how you want them.

DIY Engine Mounts Are Available For These Engines:
✅ LS
✅ LT
✅ SBC/BBC
✅ Hemi (Gen 3 - Mopar)
✅ SBF/351C
✅ Coyote 5.0
✅ Godzilla 7.3
✅ Honda K24 Z3
✅ Toyota 1JZ/2JZ
✅ 4BT & 6BT Cummins
✅ Duramax

You can buy them on our website:
➡️ https://bit.ly/4l2BtaL

Our most popular LS Swap Motor Mounts can be found here:
➡️ https://bit.ly/41ntPjw

16/10/2026

Take a closer look at our billet aluminum LS to 8HP70 transmission adapter kit. G Force Performance Products developed our LS to 8HP transmission adapter kit to make mating the popular Dodge 8HP70 automatic transmission to a GM LS engine easier.

Watch the video at:
📽️ https://bit.ly/47s0hE6

You can learn more or buy one at:
https://bit.ly/4yu3YoK

Swapping an 8HP70 transmission behind a GM LS engine? G Force Perfo...

15/10/2026

You won't find a hotter truck than the 73-87 Chevy C10 square bodies. And, many owners are swapping LS engines regularly into these haulers. G Force builds the RCC10-3 bolt-in transmission crossmember to make your LS swap go a lot easier. The RCC10-3 has heavy duty construction and a deep double hump design to allow you to get your exhaust tucked up into the frame on lowered pickups. We finish it off with a black powder coat finish for lasting protection. This PRO version includes an adjustable transmission mount for more installation flexibility.

For more information or to purchase this 73-87 C10 Transmission Crossmember, please visit:
https://bit.ly/43dvtWk

14/10/2026

Match up a 1989-2002 Cummins to Your Allison 1000 Transmission with the G Force Adapter Kit!

We build a number of adapters to help you swap engines and transmissions. Our GF-A-S Cummins to Allison Adapter Plate and Flexplate Kit accommodates 1989-2002 Cummins 6BT, or 5.9L engines bolting to a GM Allison 1000 transmission for model years 2001-2007, or with the LT Duramax bellhousing pattern.

The G Force Cummins to Allison adapter kit position the transmission straight, not angle rotated as some OEM applications.

You can get more info. or purchase this 12V Cummins to Allison 1000 adapter kit at:
➡️ https://bit.ly/4hPx5eU





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Part Number: GF-A-S

13/10/2026

Our adjustable tilting engine levelers are just what you need to make your next engine & transmission intall much easier! We designed them with an Acme threaded rod to fine-adjust the angle of the engine. Crank it one way, the engine is angled steeper to go into your engine bay. Crank it the other way to flatten out the engine. They come with heavy-duty slings, making it compatible with many engines. Choose from our universal model or our LS/LT engine version.

You can buy a universal tilting engine leveler at:
➡️ https://bit.ly/4fdS4GW

You can buy the LS/LT Engine Leveler at:
➡️ https://bit.ly/4yehi0B

12/10/2026

11/10/2026

G Force makes it easy to mate up your 2003-2025 Cummins 6BT diesel to the 1000/2000 Series Allison Transmission with our GF-A-SL swap kit. The G Force adapter positions the transmission straight, not angle rotated as some OEM applications.

To purchase this Allison transmission conversion kit for Cummins, please visit our website:
➡️ https://bit.ly/4qnofJq

G Force builds a number of kits to swap different transmissions to Cummins diesel engines. Search for "Cummins" on our website.




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Part no.: GF-A-SL