Wilcap Co.

Cadillac Engine Adapters & Parts

  • CAD-350AT - 1955-1963 Cadillac Engine to GM V8 transmissions (Manual or Auto) Download PDF
  • CAD-350MT - 1955-1963 Cadillac Engine to GM V8 transmissions (Manual or Auto) Download PDF
  • CAD-302MT - 1955-1963 Cadillac Engine to Ford Small Block V8 Manual Transmission
  • CAD-EFM - 955-1963 Cadillac Engine to 1932-1948 Ford, Mercury Transmissions
  • 303-EFM 1949-1953 Cadillac Engine to 1932-1948 Ford, Mercury Transmissions Download PDF
  • 303-350 1949-1953 Cadillac Engine to Chevrolet (Muncie Pattern) Manual TransmissionsDownload PDF
  • Flywheels in Steel or Aluminum for OHV Engines
  • Part Number Guide

    Engines
    303=331 C.I OHV V8(We call it a 303 because it shares a very similar bolt pattern with the Oldsmobile 303 C.I. engine.) 1949-1953 Cadillac
    346=1938-1948 346 C.I. Cadillac Flathead V8
    CAD=1954 -1963 331,365 & 390 C.I. Cadillac OHV V8
    Transmissions
    AT=Automatic Transmissions
    MT=Manual Transmissions
    350= Chevrolet Small and Big Block Bellhousing Bolt Pattern
    302= Ford 1965 up Ford Small Block Bellhousing Bolt Pattern
    BOP=Buick Olds Pontiac Cadillac (1966 to 1986 Iron Block V8) Bellhousing Bolt Pattern
    FE= Steel Billet Flywheel
    AL = Aluminum Billet Flywheel with Steel Friction Face

     

    CAD-350

    1955-1963 Cadillac Engine to GM V8 Automatic

    cad350 diagram

    cad350pkg6

    CAD-350ATChevy (Also Available with BOP Pattern) Download PDF


    cad-350mt diagram

    CAD-350MT

    Adapter Kit comes with Adapter plate, Flywheel, Pilot Bearing Adapter and fasteners. Download PDF

    ** Starter is Mopar Small Block (318, 340, 360) (Not included in kit)

    Note 1.. Matched Chevrolet transmission and Bellhousing. 10.5" Bell is recommended.

    Note 2. Flywheel is drilled for 10.5" B&B/Diaphragm bolt pattern. Clutch disk is 10.5 with your transmission input shaft splines.

     

     

    Cad350MTmed

    CAD-350MTChevy (also available for use with BOP bellhousing)

    CAD-EFM is similar to CAD-350MT but uses Ford 8RT bellhousing from 49-53 Ford truck or Mercury

    Download PDF

    49-53 CADILLAC V8 TO EARLY FORD/MERC P/N303-EFMDownload PDF

    CADILLAC 36-48 V8 TO CHEVY AUTO/MANUAL TRANS P/N 346-350 Download PDF

    55-64 CADILLAC V8 TO CHEVY AUTO/MANUAL TRANS P/N CAD-350 Download PDF

    303350jump

    303-350

    303-EFM adapter plate Download PDFwith modified 59A-350 bellhousing to use with 32-48 Ford Style Throw Out Bearing

    Also available with GM style throw out bearing fork Download PDF

    Miles chassis

    CAD-302 Installed

    The CAD-302 Allows the use of the Small Block ford bellhousing and transmission to the back of the 55-63 Cadillac engine

     

     


     

    FLYWHEELS

     Part Number

     Description / Material

     Ring Gear

     Avail. Pressure Plate

     FW303M 1949-1955 Marine flywheel  Aluminum  145T None
     FW303AL 1949-1955 Aluminum  With Steel Insert  145T  4,5,6,7
     FW303S 1949-1955 Replacement Steel  145T  4,5,6,7
     FWCADM 1956-1963 Marine flywheel  Aluminum  176T or 166T  None
     FWCADAL 1956-1963  Aluminum  With Steel Insert  176T or 166T   4,5,6,7*
     FWCADS 1956-1963 Replacement Steel  176T or 166T  4,5,6,7*
     FWCAD350M  Marine Aluminum for use w/adapter  130T  None
     FWCAD350AL  Aluminum W/Steel Insert for use w/adapter  130T 6
     FWCAD350FE  Steel for use with adapter  130T 6

    *166T Flywheels not available with 11" PP Patterns. 145T & 176T ring gear flywheels may require use of customers torus cover ring gear depending on availability of NOS ring gears.

    Pressure Plate Bolt Patterns;

     1.  8" Diaphragm
     2.  8.5" Diaphragm
     3.  9 1/8", 9 1/4", 9.5" B&B and Diaphragm
     4. 10", 10.5", 10.95" B&B and Diaphragm
     5. 11", 12" B&B and Diaphragm
     6. 10", 10.5" Long and 10" B&B and Diaphragm
     7. 11" Long and Diaphragm
     8. 11.5" & 12" Long and Diaphragm

    392FWWeb

     


    ENGINE ID

    1949 to 1954 331 C.I. have the cast in bellhousing with the starter bolted to a removable housing

    303IDjump

    1955 to 1964 331,365 & 390 C.I. Have a modern style "Flat Back" block with the starter bolted to the original bellhousing.

    CADblockID

    Flathead Cadillac 1936-1948 346 C.I. Note; the dowel pin location and crankshaft bolt pattern vary depending on the original transmission

    346cadblock ID


     

    Wilcap Company

    P.O. Box 763 Pismo Beach CA 93448

    (805) 481-7639

    FAX (805) 481-9367

    EMAIL pmcguire@wilcap.com

    NOTE; Please Put "Wilcap" or "Sharp" in subject line of email