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Cast bell changes and updates - MADE IN THE USA!

In this video i talk about some changes I am making to our cast bell program. These bells are now made in the USA entirely, they are cast in Ohio, and machined in Pennsylvania. 

grannas cast JZ t56 bellhousing

I am also going to talk a bit about a few rare instances we found where JZ blocks varied in tolerance and how that affected the bells runout. We machine these within VERY tight tolerances but unfortunately the toyota blocks seem to vary more than i thought. 

In the past year I have sold over 350 bellhousings, and of those 350 only 4 have had issues with indexing, so it is VERY rare, but just to ensure that all bases are covered I will be including index plate rentals with every cast bell. It is better to check and find that it is OK. There are too many tolerances that combine which can create a runout issue.

Sorry for the one-take video I did but it should explain everything pretty clearly


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Grannas Racing RHD MKIV Supra single turbo kit fitment

A lot of customers have asked "Will your turbo kit fit a RHD supra?" Well, I wanted to verify this for 100% certainty before I said yes, so here are the results.

This is showing fitment of our single 60mm gate setup with a Tial/Xona turbocharger, but the most important part on the RHD is clearing the steering rack's intermediate shaft. And as you can see, it clears without issue.

This will hold true for any of the setups with the single gate setup. So T4 open or T4 twin-scroll / divided, PTE vband inlet (non-promod) or XONA/TIAL vband inlet. You can see these options on the Grannas Racing Turbo Kits page.

I will be testing the twin 44mm gate setup next, but for now the single 60mm gate kits will fit like a glove! 

You can also see our RHD Supra clutch master cylinder kit fitting nicely as well.

RHD Supra MKIV Turbo kit grannas racing xona tial precision pte garrett

RHD Supra Toyota MKIV JZA80 2JZ single turbo kit fitment

Grannas Racing single turbo kit rhd supra mkiv jza80 is300 sc300 2jz swap

Grannas racing supra midpipe downpipe turbo header manifold tubular rhd lhd







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Tilton ST246-HD will drive like a daily but can hold 1500 horsepower

In this video one of my customers Mo's shows his 1000+WHP S14 240sx and just how amazing it drives with the GR700A T56 Magnum kit along with the Tilton ST246-HD clutch. This is the Heavy Duty version of the Tilton ST246 clutch, but as you will see in this video it drives amazing.

Tilton ST246-HD clutch

The ST246-HD clutch is rated for 1250 ft lbs of torque, so on a 2JZ application this clutch can pretty much hold 1500WHP.

The standard duty ST246 clutch is rated for about 950 ft lbs, so it can hold about 1000WHP on a 2JZ setup. I recommend this clutch for pretty much any car making between 600whp and 1000whp.

The GR700A kit uses Grannas Racing's new cast aluminum bell housing which makes for an easy installation, quieter performance, and easier serviceability. This kit combined with the Tilton ST246 clutch provides the ultimate combination in comfortability and drive-ability in a manual transmission application. I offer the GR700A kit for almost all the common 2JZ/1JZ swap applications and even offer a universal kit for cars that are not as common.

All of Grannas Racing kits are a bolt in setup, and include all the hardware, to make a seamless, easy install without any need to run to the hardware store for hardware or any need to make another order for missing parts.

Rather than purchasing off of my website, I highly recommend letting me work up a quote specifically for your car. This is an easy process using my quote form

View all of the kits I offer

More videos of the ST246 clutch

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Complete Grannas Racing Supra 8.8 rear kit install video

In this video Ryan Scott from Pure Function installs one of our complete 8.8" Ford rear kits. In the video Ryan covers every aspect of the install, from the removal of the OEM toyota differential, to swapping the ABS tone rings onto the new axles, to setting up the pinion angle.

MKIV Supra SC300 8.8" ford rear end differential install video

The kit Ryan chose was the MKIV Supra kit, with DrivesshaftShop Level5 axles, and aluminum driveshaft. He chose the thunderbird rear differential for his 1100HP build and we sourced the core and built and assembled him a complete setup ready to bolt into the car. No need for trying to find a pumpkin, we got it covered! He only had to add the oil, and bolt the differential into the car.

I recommend the 8.8 kits for those looking for a strong, quiet, street car differential. You can find our 8.8" kits on the website under the differentials section. We make a few different 8.8 kits but the most popular kits I offer:

MKIV Supra 8.8 rear kit

IS300 Ford 8.8 rear end kit

Subaru BRZ / Scion FRS / Toyota 86 8.8" rear end kit

If you are interested in pricing on a full kit, please fill out this form and I will work it up based on your car

Take some time to watch this comprehensive guide on the install. The only thing not covered here is the optional PRO LEVEL wheel hub install, which basically requires pressing off the OEM wheel hubs and installing the billet DSS Pro wheel hubs which are good for 1500HP Supras.

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Dan Dulac's MK2 Supra with GR700A transmission kit - 2JZ swap

Check out Dan's "time capsule" MK2 supra. This is such a clean, well thought out build, with everything done right. Take a look through these pictures and his video below!

grannas racing gr700a mk2 supra mkii 2jz 1jz t56 swap kit

mk2 supra GR700A t56 swap kit 2jz 1jz 6-speed tremec magnum

This 2JZ swapped MKII Toyota Supra is utilizing one of our GR700A transmission kits along with the complete McLeod Single disc setup with Tilton release bearing, the Grannas Racing MK2 master cylinder adapter kit, to make everything bolt in and drive super smooth.

Grannas Racing supra aluminum t56 bellhousing 2jz 1jz tremec magnum-f

The new GR700A kit uses our new cast aluminum bell which is recommended for easier installation and quieter operation in a street car, along with a larger service window for clutch or release bearing servicing.

grannas racing GR700A transmission kit MK2 MKii toyota supra t56 magnum 2jz 1jz

Thanks Dan for sharing your build with us and choosing my transmission kit for your build.

Here is his video

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GR700A complete install on our new Anthracite Supra Project

Our new ANTHRACITE supra project

Grannas GR700A T56 Magnum transmission install video

In this video i will introduce you to the new shop car. A super RARE anthracite MKIV Supra, only 1 of 374 sold in the USA. The downside is this car needs a lot of work.... Everywhere. It has rust issues, transmission issues, engine bay issues, cheap parts issues. So it will make for a great project / shop car. The goal is to make this a BADASS street car setup.

The first step in the process is to get it driving. The R154 it came with was broken badly, no first gear whatsoever. In this video I will cover a complete end-to-end install of the new GR700A kit. This kit includes our new aluminum bellhousing, which makes the install process so much easier, as well as quiets down the driveline and also allows easy future servicing.

This is the most comprehensive install video I have ever done, I cover clutch install, bell install, driveshaft install, clutch pedal adjustment, clutch master cylinder, wiring and setup of the speedometer using the bluetooth app, transmission fluid recommendations, all the way down to my leather shift knob and boot cone install.

Subscribe for updates as we build this car. It is going to be getting a GR 8.8" rear end kit, a built stroker motor, and new ground up turbo setup, intake manifold, basically everything end to end! It will also be getting the body/rust issues fixed along with a new paint job. And no, we are not changing the factory color!

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NEW 2JZ to T56 Cast Aluminum Bellhousing


UPDATE 1/25/2022: I do recommend checking runout with an index plate. I have been noticing more and more customer's toyota blocks who are more out of spec than others. We are within .002 on the bells, and consistent, so the inconsistency comes from the blocks... A smaller percentage (about 15 in 400 bells sold) has shown an out of index condition, so I think it is better to play it safe and just check these to be sure. Out of index can cause premature failure of the input bearing as well as uneven wear and heat in the input gear. A tell-tale sign of an out of index bell can be a lot of rollover noise coming from the transmission. This is due to a side-loading condition on the input which over time can cause transmission issues. I do index plate rentals for any customer who purchased a bell or kit from me.


Out of a need for an easier to install, quieter setup for street cars, a cast aluminum bell that is machined to spec has always been something I wanted to take on... but I did not have the sales volume where I felt comfortable doing this until now.

In this video I cover the advantages to my new street bell housing setup which will now be standard in all GR700 Kits. This cast aluminum adapter bellhousing Works with any 2JZ and 1JZ engines and any LS based T56 or any Tremec T56 Magnum including Magnum-F and Magnum XL.

This bellhousing should reduce noise, require less work, and make for a much easier install. No index plate, no offset dowels, no extra wait time to order the proper offset dowels, and no extra downtime.

I AM DOING A GROUP BUY FOR KITS WITH THIS NEW BELL. The deal is going to be hard to beat. In addition to the new Aluminum bell kit, you will get a FREE SINGLE DISC CLUTCH or $500 OFF ANY OTHER HEAVIER DUTY CLUTCH.


This is something I have been keeping under wraps for about 8 months, and it's finally coming to life. Once machine work is completed, these will be standard in all GR700 kits! I will continue to stock Quicktime bells and they will always still be on the shelf for the guys who want to race and have a SFI certified bell.

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2500HP Air-to-Air Supra Intercooler Setup - TX2K prep 2021

Well, It's February 28th, only one day away from March, with TX2K approaching very fast... and we are crunching to get Orange Man Bad ready for Texas.

Some updates include a new intercooler setup, and dual parachutes. We were seeing massive pressure drop across the old dual-core setup, which was already a massive 7" thick (24x12x7" total) with two 3.5" Vibrant cores welded together. The new core is two 4.5" thick CSF cores which is now 9" thick (24x12x9" total). The old core was rated at 2000HP and this new setup should be good for 2500HP+

This is definitely the largest intercooler I have ever seen. We have nicknamed the intercooler "Girth Brooks"

Rob also got the dual chutes mounted up so we are safer with the 200MPH+ trap speeds! Now we should be able to run all the boost!

Hope to see you all in Texas!


Looking for a Tremec T56 Magnum, Magnum-F, or Magnum XL for your street or strip car? We keep them in stock! Along with clutches and everything else for your T56 swap project!

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Grannas "Orange Man Bad" Supra - Greatest Hits - Top 8 passes

Here is a new video i made of the top 8 passes in Orange Man Bad. These are the quickest/fastest 8 passes so far, as of February 2021. With some updates, we are looking to go even faster next month in Texas! If you haven't subscribed to my channel, please do


If you want the new 6-second shirt or hoodie designs, they are available here

See you all at TX2K!

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