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Top Sellers

Chevy 153 Tooth Inspection Plate (New OEM)
Chevy 153 Tooth Inspection Plate (New OEM)
$21.00
Bellhousing Shield Bolts (R)
Bellhousing Shield Bolts (R)
$3.95
Transmission to Bellhousing Bolts
Transmission to Bellhousing Bolts
$4.99
3790556 Bellhousing Ball Stud (New OEM)
3790556 Bellhousing Ball Stud (New OEM)
$18.00
Bellhousing to Engine Bolts
Bellhousing to Engine Bolts "M" Head (R)
$7.95

New Releases

Wilwood Remote Hydraulic Reservoir
Wilwood Remote Hydraulic Reservoir
$32.94
63-64 Pontiac Fullsize Column to firewall bracket
63-64 Pontiac Fullsize Column to firewall bracket
$100.00
#14060627 Clutch Housing
#14060627 Clutch Housing
$220.00
  1. Home
  2. GM PARTS SEARCH
  3. Clutch Housings
  4. Chevy Engine
  5. Casting #3788383 62-63 Chevy II 153 Tooth

Casting #3788383 62-63 Chevy II 153 Tooth


General Motors Casting Number 3788383 Clutch Housing

This "383" is an aluminum 153 tooth bellhousing
with 4 1/8"center hole, and the example shown
has no z-bar provisions.
The clutch fork hole is at the 7o'clock position,
and the fork stud is lowered to be inline with the
center hole.

Transmission Mounting
The transmission mounting threaded holes (1/2"-13)
are in the GM cooperate pattern and spacing. Here
you can also see the space between the 4 1/8: center
hole and the clutch fork pivot. This separation is
obviously smaller on the casting #3849309 housing.

Bottom View
This casting could have been used on left or right
hand drive cars. The fork ball stud could be threaded
on each side, and the clutch fork knock out is on each
side. This example is for left hand drive cars. The
casting number is probably different for the left hand
drive version.

Right Side
This view shows the straight starter side common
with the 153 tooth flywheel bellhousings.

Top View
GM is cast into this example. 

Left Side
The clutch release fork opening can be seen at 
approximately the 7 O'clock position.  

Casting Number
The casting number is cast into the unused fork
hole knock out.

Engineering codes
The engineering codes are cast on top of the right
side fork hole on this example.

Inside View

Close Up Inside
The above view of the inside shows the straight
line from center hole thru fork stud to the fork hole. 
Also shown: how close the lower drivers side
transmission mounting hole is to the fork hole.
This makes the fork boot unique, because it needs
to be notched to clear the mounting bolt.
NOTE:
There is some discussion on forums about opening
up the center hole to accommodate 4 5/8" transmission
bearing retainer. As you can see machining 1/2"
from the center hole will leave no transmission seat
and greatly weaken this bellhousing.

Applications

Disclaimer:
Most parts that I describe and picture, have identification on or with them, others I can identify from other sources and deduction (educated guess).
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Applications are for replacement parts that were available at the time of parts book printing, and when possible model specific assembly manuals.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs, forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!

Parts For Sale [11]

62-63 Chevy II Bellhousing
62-63 Chevy II Bellhousing
Sold
$120.00
Chevy 153 Tooth Inspection Plate (New OEM)
Chevy 153 Tooth Inspection Plate (New OEM)
Sold Out
$21.00
3790556 Bellhousing Ball Stud (New OEM)
3790556 Bellhousing Ball Stud (New OEM)
Sold Out
$18.00
Adjustable Fork Ball Stud
Adjustable Fork Ball Stud
Sold Out
$23.98
Chevy II Clutch Fork Boot (R)
Chevy II Clutch Fork Boot (R)
Sold Out
$10.95
(R) #3788401 62-67 Chevy II Fork
(R) #3788401 62-67 Chevy II Fork
Out of Stock
$35.00
(New OEM) GM 5/8
(New OEM) GM 5/8" Block Dowel Pins
Sold Out
$8.80
Bellhousing to Engine Bolts
Bellhousing to Engine Bolts "A" Head (R)
Sold Out
$10.50
Bellhousing to Engine Bolts
Bellhousing to Engine Bolts "M" Head (R)
Sold Out
$7.95
Transmission to Bellhousing Bolts
Transmission to Bellhousing Bolts
Sold Out
$4.99
Bellhousing Shield Bolts (R)
Bellhousing Shield Bolts (R)
Sold Out
$3.95
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