We have returned to market with the 200-4R's that many of our customers are familiar with.
We have helped create some new sources for QUALITY billet 200-4R parts and installed a new dyno in th shop to assure our standards of quality are met.
Our experience in the Turbo Buick community as well as building the 200-4R for retrofit applications has allowed us to become one of the noted builders in the country for these units. Many people have unfortunately discovered that the 200-4R requires a builder who know's these transmissions. It has been proven that there are many good builders on other units who cannot get the 200-4R to work right or live.
The 200-4R is an excellent unit for retrofit. It's physical size and length as well as output spline count make it a very easy retrofit in place of the short tailshaft TH350. We have installed the 200-4R in Chevelles, 1st and 2nd Generation Camaro's, Pontiac GTO's, Firebirds, pickups, RX7s, Datsun Z cars, and other applications.
We can help you decide if it is the right transmission for your car or truck and give advice on what parts are needed and where you can get them.
Another great feature of the 200-4R that makes it a better choice in many retrofits is the gear ratios. It has a greater overdrive ratio (.67:1) and an excellent 1st gear ratio (2.74:1) and 1-2 ratio change.
Stage I 200-4R:
Basic street performance build for up to 300 HP. Completely rebuilt with heat treated sun shell and stator, new clutches, larger boost valves, pump upgrades.
Stage 2 200-4R:
Includes everything in the Stage 1 build but has an upgraded billet servo and deep aluminum pan. $1750
Stage 3 200-4R:
Includes a billet forward drum (most common hard part failure), billet servo and anchor pin and deep pan to make it reliable at up to 550 HP/TQ .
Additonal hard parts allow greater power capacity. We use select valve body cores for our Stage II units that allow for 5000-6000 rpm WOT upshifts.We will need your desired shift rpm to calibrate the transmission.