Convert your 1949 - 1964 Oldsmobile 303, 324, 371 or 394 to an up to date  TH 350, TH 400, 700 R4, 200 4R or Powerglide.  Kit includes all adapters, bolts, fasteners and your modified case and flywheel.    Shifting linkage, vacuum lines, driveshaft and kick down apparatus may need to be fabricated or modified.  Picture belowshows a TH 350 with modified case and flywheel.  Optional side mounts attached to a stock 1950 88 crossmember  

(crossmember shown in picture is for illustration only).

What we need from you: 

You will need to supply a clean empty case of your choice ( with the exception of the 200 4R which needs to use a  V-8 case only ) and the automatic flywheel ( and flex plate if used on you engine ) from the engine your going to use.  This conversion uses 11" converters only.  It's best to have your transmission case checked by professionals for any damage.  When ordering please indicate engine size, and car it's installed in.  Our mounts work with the stock crossmember for automatic transmissions.  This conversion takes about 3 months to complete.

1949 - 1964 ............................................... No. 5TC-F   $789.00

Optional rear side mounts

( needed for stock installation ) ............. No. 5TCM    $165.00

- CADILLAC CONVERSION -

1949 - 1954 ( see description for Oldsmobile ) No. 5TC C-F  $789.00

1955 - 1964 .............................................. No. 5TC Ca-F $896.00

 We need the front part from the Jetaway transmission.  This is about      10"  long and the starter bolts up to it. Send a Chevrolet case only.  We also need the automatic flywheel and the flexplate from the engine your going to use.

- BUICK CONVERSION -

1953 - 1956 ( see Oldsmobile description above ) No. 5TC B-F  $896.00

1957 - 1966 ( SEE BUICK AUTOMATIC TRANSMISSION ADAPTER BELOW )

    We do not provide any kits for dealing with the Buick closed driveline.  A rear end change should be considered.

-------------- NOTE: ------------------------ 

    The Cadillac and Buick conversions should not require mounts if used in original application. 

1957-1966 Buick V8 (361, 401 & 425 engines)

This kit is made from the highest quality components including aircraft grade hardware and T6 aluminum. It is CNC machined for accuracy. Designed to fit all 57-66 Buick 364-401 and 425 engines. This kit is for the builder who already has the Buick flexplate from the 64-66 models and a Chevrolet flexplate for the converter. On 64-66 Models originally equipped with the Switch pitch 400 or ST400 this is a direct bolt-on. On 57-63 models originally equipped with a dynaflow; it is necessary to use the later "short snout" starter. This starter was original equipment on 64-66 Buicks with the Buick 400 transmission. On 57-62 Models it will be necessary to drill and tap an additional bolt hole in the block to compensate for the change in the upper bolt location on the later starters. When using an OE flexplate on a model originally equipped with a dynaflow; It is necesarry to enlarge the I.D. of the flexplate to the dynaflow specs. If you do not have acces to OEM flexplates; see kit#4246
 

Without flex plates  No.4245 .. $325.00

Complete Kit,  No.4246 ........... $399.99

Comes with both Buick & Chevrolet  flexplates.

This bellhousing allows the use of all 1955 and up Chevrolet transmissions. Please provide year, make & engine size when ordering.  Use GM 11" clutch disc., long style pressure plate with 3 fingers & short throw-out bearing.  Uses clutch fork & ball from 49-84 GM 6 cyl. cars & trucks with 7/16" fine thread.  Or order our good used set below.

Oldsmobile 1949-1964 (303, 324, 371 & 394) 

Cadillac 1949-1955, 331 engines.

Part No.5157 .................................. $319.00

1957-1966 for 364, 401 & 425 engines.  This bellhousing allows the use of all 1955 and up Chevrolet transmissions. Comes with pilot bushing. Please provide year & engine size when ordering.  Use GM 11" clutch disc., long style pressure plate with 3 fingers & short throw-out bearing.  Uses clutch fork & ball from 49-84 GM 6 cyl. cars & trucks with 7/16" fine thread.  Or order our good used set below.

Part No. 5057 ....................................$319.00

Fits Cad / Olds & Buick bellhousings, 5057 & 5157.  Good used pieces.

.....................................................$45.95 set

(364, 401 & 425 engines)

This steel billet flywheel is balanced to OE specs and is drilled for the long style pressure plate and 11" clutch. Choose from the Dynaflow or SP400 crank hub when ordering.

Part No. 5056 ..............................................$249.00