Shop Speed Gems Transmission Adapter Kits | Speed Gems
Shop Speed Gems' Kits

Shop Speed Gems' Kits

CH301 CHEVY STOVEBOLT STRAIGHT-6 (216/235/261) TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)
from $1,150.00

CH301 CHEVY STOVEBOLT STRAIGHT-6 (216/235/261) TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)

Speed Gems

Call us for order details +1(763) 767-4480 Materials Included:  (1) ADAPTER PLATE, CHEVY IN-6 TO CHEVY V8 Automatic Transmission(2) SHCS, ¼-28 X 1...

View full details
from $1,150.00
FO301 FORD Y-BLOCK
from $1,350.00

FO301 FORD Y-BLOCK 239/252/272/292/312 TO FORD SMALL BLOCK AOD/C5/C6

Speed Gems

Note: This kit will also work for a C5, C6. If you plan on using a C4, be sure that you have the larger 164 tooth flexplate style bellhousing (Ford...

View full details
from $1,350.00
FO201FordFE352
from $1,350.00

FO201 FORD FE 352/360/390/406/427 TO FORD SMALL BLOCK AOD/C5/C6

Speed Gems

Note: This kit will also work for a C5, C6. If you plan on using a C4, be sure that you have the larger 164 tooth flexplate style bellhousing (Ford...

View full details
from $1,350.00
FO2501 FORD 429/460 TO FORD MODULAR V8 AUTOMATIC TRANSMISSION (6R80/4R70W)
Sold out
from $1,650.00

FO2501 FORD 429/460 TO FORD MODULAR V8 AUTOMATIC TRANSMISSION (6R80/4R70W)

Speed Gems

Call for more info 763-767-4480 USES V8 STYLE 5.0L/5.4L 6R80 *** If you have a 351M or 400, Please see kit # FO2502 NO GRINDING OF ANY KIND ON...

View full details
from $1,650.00
Sold out
CA101 1954-63 CADILLAC 365/390
from $1,250.00

CA101 1954-63 CADILLAC 365/390 OR “FLAT-BACK” BLOCK STYLE 331 TO CHEVY AUTOMATIC V8 TRANSMISSION

Speed Gems

Materials Included:  (1) Adapter Plate - 1954 & up Cadillac to Chevy Automatic(1) Crank Adapter(1) High Torque mini-Starter(2) HCS 3/8-16 x 3-3...

View full details
from $1,250.00
FO203 FORD FE 352/360/390/406/427 TO FORD MODULAR V8 AUTOMATIC TRANSMISSION
from $1,350.00

FO203 FORD FE 352/360/390/406/427 TO FORD MODULAR V8 AUTOMATIC TRANSMISSION (6R80/4R70W)

Speed Gems

Materials Included: (1) Adapter Plate - Ford/Lincoln/Mercury to Ford(1) Crank Adapter - Ford/Lincoln/Mercury/Edsel to Ford AOD(1) Flexplate(1) High...

View full details
from $1,350.00
FO2701 FORD SMALL BLOCK 1965 & NEWER TO FORD MODULAR
Sold out
from $1,650.00

FO2701 FORD SMALL BLOCK 1965 & NEWER TO FORD MODULAR AUTOMATIC TRANSMISSION (6R80/4R70W)

Speed Gems

Revision in process, release expected 9/15. Please call for information or preorders 763-767-4480

from $1,650.00
Sold out
FO401 FORD FE 352/360/390/406/427
from $1,350.00

FO401 FORD FE 352/360/390/406/427 TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)

Speed Gems

Materials Included: (1) Adapter Plate – Ford FE to Chevy(1) Crank Adapter – Ford FE to Chevy(1) Flexplate(1) High-torque mini-Starter(4) SHCS 7/16-...

View full details
from $1,350.00
FO501 FORD 8BA FLATHEAD
from $1,200.00

FO501 FORD 8BA FLATHEAD (1949-1953) TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)

Speed Gems

Materials Included:  (1) Adapter Plate – 1949-1953 Ford Flat-head to Chevy Auto.(1) Crank Adapter – 1949-1953 Ford Flat-head to Chevy Auto.(1) Flex...

View full details
from $1,200.00
FO10001
from $1,250.00

FO102 FORD 429/460 TO FORD SMALL BLOCK AOD/C5/C6

Speed Gems

Note: Does not work with 351M/400. This kit will also work for a C5, C6.  If you plan on using a C4, be sure that you have the larger 164 tooth fle...

View full details
from $1,250.00
Buick 264/322 Nailhead
from $1,150.00

BU501 1953-1956 Buick 264/322 Nailhead to Chevy Automatic V8 Transmission

Speed Gems

Materials Included: (1) Adapter Plate - Buick Nailhead to Chevy(1) Crank Adapter 1953-56 Buick 264/322 Nailhead to Chevy Auto.(1) Torque Converter ...

View full details
from $1,150.00
FO501 FORD 8BA FLATHEAD
from $1,200.00

FO1001 FORD Y-BLOCK 239/252/272/292/312 TO CHVEY V8 AUTOMATIC TRANSMISSION (700R4)

Speed Gems

Materials Included: (1) Adapter plate - Ford 239 Y block to Chevy(1) Crank Adapter - Ford 239 Y block to Chevy automatic transmission(1) Top steel ...

View full details
from $1,200.00
MT601 Ford T-5 1983-1993
$325.00

MT601 Ford T-5 1983-1993 to most 1964-82 Ford 3 & 4-speed Bellhousings

Speed Gems

Materials Included: (1) Adapter plate - 1983-1993 Ford T-5 onto most Ford 3 and 4 speed bellhousings(2) FHSCS 7/16-14 x 1-1/2(2) HCS 3/8-16 x 1 3/4...

View full details
$325.00
OL302 1957-1960 Oldsmobile 371/394
from $1,575.00

OL302 1957-1960 Oldsmobile 371/394 to Chevy Automatic Transmission (externally balanced)

Speed Gems

Note: Due to the nature of the Chevy V8 bellhousing being larger than the engine block rear profile and shape, this kit requires modification of th...

View full details
from $1,575.00
OL301 1949-1956 Oldsmobile 303/324
from $1,575.00

OL301 1949-1956 Oldsmobile 303/324 to Chevy Automatic Transmission (internally balanced)

Speed Gems

Note: Due to the nature of the Chevy V8 bellhousing being larger than the engine block rear profile and shape, this kit requires modification of th...

View full details
from $1,575.00
BU602 1957-1963 Buick 401/425 Nailhead (w/ 2.90" crank flange) to Chevy Automatic Transmission
from $1,150.00

BU602 1957-1963 Buick 401/425 Nailhead (w/ 2.90" crank flange) to Chevy Automatic Transmission

Speed Gems

Materials Included: (1) Adapter Plate - Buick Nailhead to Chevy(1) Crank Adapter-Inner(1) Crank Adapter-Outer(1) Torque Converter Drive Plate(1) Fl...

View full details
from $1,150.00
ME401 Mercedes 5 & 6-cylinder
from $1,450.00

ME401 Mercedes 5 & 6-cylinder (1987 & Newer) Diesel Engine (w/ 15-degree) to Chevy Manual Transmission

Speed Gems

15 degree offset it to angle the engine more than from the factory for tighter packaging in shorter engine bays. Materials Included: (1) Adapter ...

View full details
from $1,450.00
PA201  1955-1956 Packard 320/352/374/400  V8 to Chevy 700R4/Automatic Transmission
from $1,350.00

PA201 1955-1956 Packard 320/352/374/400 V8 to Chevy 700R4/Automatic Transmission

Speed Gems

Materials Included: (1) Adapter Plate - Packard V8 to Chevy(1) Crank Spacer - Packard V8 to Chevy(1) Torque Converter Drive Plate(2) Dowel Pin 0.62...

View full details
from $1,350.00
MT301  216/235 with 3-speed Chevy Bellhousing 1954 and Older to Chevy S10 T5 1984-1992
$255.00

MT301 216/235 with 3-speed Chevy Bellhousing 1954 and Older to Chevy S10 T5 1984-1992

Speed Gems

Materials Included: (1) Adapter plate - 1984-1992 Chevy S10 T5 to 1954 or older Chevy 216/235 with Chevy 3-speed Bellhousings(4) FHSCS 3/8-16 x 1-1...

View full details
$255.00
OL303 1961-1964 Oldsmobile 394 with "Slim-Jim"
from $1,100.00

OL303 1961-1964 Oldsmobile 394 with "Slim-Jim" to Chevy Automatic Transmission (166-tooth externally balanced)

Speed Gems

Note: You will be re-using the stock Slim-Jim flywheel with this kit. Remove the original drive plate that is held onto the stock flywheel with 5/1...

View full details
from $1,100.00
FO901 FORD SMALL BLOCK 221/260/289 1964 & OLDER TO FORD SMALL BLOCK AOD/C5/C6
from $1,250.00

FO901 FORD SMALL BLOCK 221/260/289 1964 & OLDER TO FORD SMALL BLOCK AOD/C5/C6

Speed Gems

Please call for availability +1 763-767-4480 Note: This kit will also work for a C5, C6. If you plan on using a C4, be sure that you have the large...

View full details
from $1,250.00
S10006 - High-Torque mini-Starter (Multiple Kit Applications)
$178.99

S10006 - High-Torque mini-Starter (Multiple Kit Applications)

Speed Gems

This Starter works with the following Speed Gems Kit #'s: · AMC1 - 01· BU1 - 01· BU2 - 01· BU3 - 01· BU4 - 01· CA1 - 01· CA1 - 02· FO2 - 01· FO2 - ...

View full details
$178.99
MT101 Chevy 3 & 4-speed Bellhousings
$325.00

MT101 Chevy 3 & 4-speed Bellhousings (most) to Chevy S10 T5 1984-1992

Speed Gems

Materials Included: (1) Adapter plate - 1984-1992 Chevy S10 T5 to most Chevy 3 & 4-speed Bellhousings(4) SHCS 1/2-13 x 2 This BELLHOUSING ADAP...

View full details
$325.00
PA101  Packard 288/327/359 Straight-8 to Chevy Automatic V8 Transmission
from $1,350.00

PA101 Packard 288/327/359 Straight-8 to Chevy Automatic V8 Transmission

Speed Gems

Materials Included: (1) Adapter Plate - Packard 288/327/359 Straight-8 to Chevy(1) Crank Spacer - Packard 288/327/359 Straight-8 to Chevy(1) Flexpl...

View full details
from $1,350.00
EC101  ECOTEC Naturally Aspirated (i.e. Olds Alero) to Chevy Automatic V8 Transmission (700R4/TH350/TH400)
from $1,250.00

EC101 ECOTEC Naturally Aspirated (i.e. Olds Alero) to Chevy Automatic V8 Transmission (700R4/TH350/TH400)

Speed Gems

Materials Included: (1) Adapter Plate - ECOTEC to Chevy(1) Crank Adapter(1) Torque Converter Drive Plate(2) SHCS M12-1.75 x 35(4) SHCS M12-1.75 x 5...

View full details
from $1,250.00
OL101  1949-1956 Oldsmobile 303/324 to Chevy Manual Transmission
from $1,575.00

OL101 1949-1956 Oldsmobile 303/324 to Chevy Manual Transmission

Speed Gems

NOTE: Due to the nature of the Chevy V8 bellhousing being larger than the engine block rear profile and shape, this kit requires modification of th...

View full details
from $1,575.00
ME101  Mercedes OM616 & OM617  5-cylinder Diesel Engine to Chevy Automatic V8 Transmission
from $1,150.00

ME101 Mercedes OM616 & OM617 5-cylinder Diesel Engine to Chevy Automatic V8 Transmission

Speed Gems

Materials Included:  (1) Adapter plate - Mercedes 5 cylinder diesel to Chevy(1) Crank Adapter - Mercedes 5 cyl diesel to Chevy 350/400(1) Flexplate...

View full details
from $1,150.00
BU101  Buick Straight-8  233/248/263 w/ orig. Manual Transmission to Chevy V8 Automatic
from $1,250.00

BU101 Buick Straight-8 233/248/263 w/ orig. Manual Transmission to Chevy V8 Automatic

Speed Gems

Note: When replacing your transmission with a more modern unit, a modern axle may be required that does not utilize a torque tube.  Materials Incl...

View full details
from $1,250.00
FO601 FORD 429/460 TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)
from $1,350.00

FO601 FORD 429/460 TO CHEVY V8 AUTOMATIC TRANSMISSION (700R4)

Speed Gems

Materials Included: (1) Adapter plate - Ford to Chevy auto(1) Block Plate - Ford 429/460 to Chevy auto(1) Starter, Short Gear, .500" (1) Torque con...

View full details
from $1,350.00
WMO501 1924-64 CHRYSLER FLATHEAD STRAIGHT-6 TO CHEVY V8 AUTOMATIC TRANSMISSION
from $1,250.00

WMO501 1924-64 CHRYSLER FLATHEAD STRAIGHT-6 TO CHEVY V8 AUTOMATIC TRANSMISSION

Speed Gems

CHRYSLER FLATHEAD 6 TO CHEVY AUTO. ENGINE APPLICATION YEARS/CID CHRYSLER/DODGE/PLYMOUTH FLATHEAD 6 CYL 201,218, 230, 251, 265 CI 1933-1971 ...

View full details
from $1,250.00
DO103  Designed Specifically for the Dodge Hemi Hellcat 6.2L & 6.4L to Chevy 4L80E/Automatic Transmission
from $1,375.00

DO103 Designed Specifically for the Dodge Hemi Hellcat 6.2L & 6.4L to Chevy 4L80E/Automatic Transmission

Speed Gems

*This Kit allows for using the original factory starter in the stock location, while retaining the factory flexplate, and doesn't require any block...

View full details
from $1,375.00
GM401  GM 3800 Series V6 Engine to Chevy Automatic V8 Transmission
from $925.00

GM401 GM 3800 Series V6 Engine to Chevy Automatic V8 Transmission

Speed Gems

Materials Included: (1) Adapter plate - GMC 3800 V6 Series 1 & 2 to Chevy auto(1) Crank Adapter - GMC 3800 V6 Series 1 & 2 to Chevy V8 styl...

View full details
from $925.00
MT801  Ford T5 1983-1993 to Chevy Bellhousing
$325.00

MT801 Ford T5 1983-1993 to Chevy Bellhousing

Speed Gems

Materials Included: (1) Adapter plate - Chevy bellhousing to Ford T5(2) HCS 3/8-16 x 1-1/2(2) Flat Washer 3/8(2) FHSCS 1/2-13 x 1-1/2(4) SHCS 7/16-...

View full details
$325.00
CA102 1954-63 CADILLAC 365/390 OR “FLAT-BACK” BLOCK STYLE 331 TO CHEVY MANUAL TRANSMISSION
from $1,400.00

CA102 1954-63 CADILLAC 365/390 OR “FLAT-BACK” BLOCK STYLE 331 TO CHEVY MANUAL TRANSMISSION

Speed Gems

*This kit includes everything you will need to mate your 365 or 390 to a manual transmission. There is no need to buy additional parts when you ord...

View full details
from $1,400.00
MT701  Ford T-5 1983-1993 to Ford Flathead with stamped-steel Bellhousing
$295.00

MT701 Ford T-5 1983-1993 to Ford Flathead with stamped-steel Bellhousing

Speed Gems

Materials Included: (1) Adapter plate - Mercury/Ford Flathead to Ford T-5(2) FHSCS 7/16-14 x 1-1/2(2) SHCS 7/16-20 x 2(2) SHCS 7/16-14 x 1-1/4   Th...

View full details
$295.00
ME202  Mercedes 5 & 6-cylinder (1987 & Newer) Diesel Engine (w/15-degree) to Chevy Automatic V8 Transmission
Sold out
from $1,250.00

ME202 Mercedes 5 & 6-cylinder (1987 & Newer) Diesel Engine (w/15-degree) to Chevy Automatic V8 Transmission

Speed Gems

15 degree offset it to angle the engine more than from the factory for tighter packaging in shorter engine bays. Materials Included:  (1) Adapter p...

View full details
from $1,250.00
Sold out