Mopar Transmission Adapters | Hemi, Slant-6, Small Block — Speed Gems

Mopar Engine Adapters

DO101 Dodge Hemi with NAG1 to Chevy automatic transmission adapter kit — adapter plate and hardware
from $1,375.00

DO101 Dodge Hemi w/ NAG1 to Chevy Automatic V8 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
Dodge Hemi Hellcat 6.2L and 6.4L supercharged V8 engine — compatible with DO103 Chevy 4L80E transmission adapter kit
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
WMO1001- Early Hemi to Early (1932-1948) Ford 3 & 4 Speed Transmissions 392-EFM
$575.00

WMO1001- Early Hemi to Early (1932-1948) Ford 3 & 4 Speed Transmissions 392-EFM

Speed Gems

PLEASE CALL FOR AVAILABILITY & LEAD TIME 763-767-4480

$575.00
WMO101 early Hemi to Chevy automatic transmission adapter kit — bellhousing adapter plate, flexplate, starter, and hardware
from $1,250.00

WMO101 Early Hemi to Chevy Automatic V8 Transmission 392-350AT

Speed Gems

  392-350 ADAPTER W/ FLEX PLATE AND HUB SPACER. ENGINE APPLICATION YEARS/CID: V8 CHRYSLER 54-58, DODGE 53-58, DESOTO 52-58, PLYMOUTH 55-58 ...

View full details
from $1,250.00
WMO1101-1951-1953 331 Chrysler ( Extended Block) to the Chevy "Muncie" Transmission 331-350CH-MT
$1,650.00

WMO1101-1951-1953 331 Chrysler ( Extended Block) to the Chevy "Muncie" Transmission 331-350CH-MT

Speed Gems

Lead Time: This item is built to order. Estimated production time is 4–8 weeks.   Please note: cost includes starter and flywheel

$1,650.00
WMO1301- 1951-1953 331 with extended bellhousing to Mopar Automatic A727 331-318AT
$1,350.00

WMO1301- 1951-1953 331 with extended bellhousing to Mopar Automatic A727 331-318AT

Speed Gems

Product Details ENGINE APPLICATION YEARS/CID: V8 CHRYSLER 51-53 331 C.I. WITH EXTENDED BELLHOUSING TRANSMISSION APPLICATION YEAR/MODEL: SMALL BL...

View full details
$1,350.00
WMO1401-Early Hemi to SMALL BLOCK MOPAR MANUAL TRANS. 392-318-MT
$1,450.00

WMO1401-Early Hemi to SMALL BLOCK MOPAR MANUAL TRANS. 392-318-MT

Speed Gems

Lead Time: This item is built to order. Estimated production time is 4–8 weeks.   Please note: cost includes starter and flywheel 392-318 MANUAL TR...

View full details
$1,450.00
WMO1501 early Hemi to Ford small block manual transmission adapter kit — adapter plate, flywheel, ring gear, starter, and hardware
$1,450.00

WMO1501 Early Hemi to Ford Small Block Manual Transmission 392-302

Speed Gems

PLEASE CALL FOR AVAILABILITY & LEAD TIME 763-767-4480 Please note: cost includes starter and flywheel

$1,450.00
WMO1601: MOPAR SLANT-6 1959-67 TO CHEVY V8 AUTOMATIC 225-350AT
from $1,350.00

WMO1601: MOPAR SLANT-6 1959-67 TO CHEVY V8 AUTOMATIC 225-350AT

Speed Gems

Are you planning on using a modern GM 4L60E, 4L65E, and 4L70E (1997 and earlier only) or GM 4L80E and 4L85E transmission with this kit? By adding a...

View full details
from $1,350.00
WMO1602: MOPAR SLANT-6 1968 & UP TO CHEVY V8 AUTOMATIC 225-350AT
from $1,350.00

WMO1602: MOPAR SLANT-6 1968 & UP TO CHEVY V8 AUTOMATIC 225-350AT

Speed Gems

Are you planning on using a modern GM 4L60E, 4L65E, and 4L70E (1997 and earlier only) or GM 4L80E and 4L85E transmission with this kit? By adding ...

View full details
from $1,350.00
WMO1701 early Hemi 392 to Chevy manual transmission adapter kit — adapter plate, flywheel, and hardware
$1,450.00

WMO1701- Early Hemi 392 TO 350 CHEVY TRANS Manual Transmission

Speed Gems

Are you planning on using a modern GM 4L60E, 4L65E, and 4L70E (1997 and earlier only) or GM 4L80E and 4L85E transmission with this kit? By adding a...

View full details
$1,450.00
WMO2301 1951-53 CHRYSLER 331 W/ EXT. BELL STYLE BLOCK TO CHEVY V8 AUTOMATIC TRANSMISSION
Sold out
$1,650.00

WMO2301 1951-53 CHRYSLER 331 W/ EXT. BELL STYLE BLOCK TO CHEVY V8 AUTOMATIC TRANSMISSION

Speed Gems

Lead Time: This item is built to order. Estimated production time is 4–8 weeks. AS SEEN ON DONUT MEDIA WHERE OUR KIT WAS PLANTED IN A 1952 CHRYSLER...

View full details
$1,650.00
Sold out
WMO501 1924-64 CHRYSLER FLATHEAD STRAIGHT-6 TO CHEVY V8 AUTOMATIC TRANSMISSION
Sold out
from $1,350.00

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 $1,350.00
Sold out
WMO601 (6-BOLT  CRANK) Mopar Small Block To Chevy Automatic V8 Transmission 318-350 AT
from $1,250.00

WMO601 (6-BOLT CRANK) Mopar Small Block To Chevy Automatic V8 Transmission 318-350 AT

Speed Gems

Product Details SB CHRYSLER TO SB CHEVY. Note that this is NOT the Magnum engine. Contact us if you have an SB Magnum. In addition the 340 c.i....

View full details
from $1,250.00
WMO701 Mopar big block 6-bolt crankshaft to Chevy automatic transmission adapter kit — adapter plate, flexplate, crank spacer, and hardware
Sold out
from $1,250.00

WMO701 (6-BOLT CRANK) Mopar Big Block To Chevy Automatic V8 Transmission 426-350-AT

Speed Gems

Product Details 426-350 ADAPTER WITH FLEX PLATE AND HUB ADAPTER ENGINE APPLICATION YEARS/Cm V8 CHRYSLER BIG BLOCK 361,383,400,413,426,440 6 BOLT...

View full details
from $1,250.00
Sold out
WMO702 Mopar big block 8-bolt crankshaft to Chevy automatic transmission adapter kit — adapter plate, flexplate, crank spacer, and hardware
Sold out
from $1,250.00

WMO702 (8-BOLT CRANK) Mopar Big Block To Chevy Automatic V8 Transmission 426-350-AT

Speed Gems

Product Details 426-350 ADAPTER WITH FLEX PLATE AND HUB ADAPTER ENGINE APPLICATION YEARS/Cm V8 CHRYSLER BIG BLOCK 361,383,400,413,426,440 8 BOLT...

View full details
from $1,250.00
Sold out