Owners manual

1. Disconnect the battery and all electrical connections, hoses, cables, linkage, etc., carefully tagging and
identifying their function. Remove engine, transmission, front motor mounts and trans. crossmember.
2. Install the 7/16-14 X 1" bolts provided through the holes marked "X" and
attach motor mounts over the stock motor mount locations.
3. Bolt the mount pads from kit #4235 to the plates in this kit. Use this kits
3/8-16 X 3/4" bolts in the tapped holes and add washers as necessary to
pre-vent bolts from bottoming out. Trim corner of left motor mount to match
the steel plate for steering shaft clearance (Illustration A). You must also
enlarge and slightly recontour the transmission tunnel. You need to raise the
opening about 2" along the top edge where the tunnel meets the firewall
and back about 5", (Illustration B).
4. Bolt the shells from kit #4235 to the engine. Next, lower
the engine and transmission into place.
5. Place transmission crossmember into place. Then level and align the engine
and transmission adjusting the motor mount plates as necessary.
Note: For high performance applications, welding plates to frame is
recommended. If using bolt on method, skip to step 9.
6. When everything is true, tack weld the plates in place.
7. Remove the engine and transmission, and weld plates securely to the frame
crossmember.
8. You may now reinstall the engine and transmission, connect all hoses, electrical,
cables, and thoroughly check all fasteners for tightness.
9. Your driveshaft must be shortened. Have this done by a qualified professional. Poor driveshaft alignment or
balance will cause extensive damage to tailshaft bearings, U-Joints, etc.
NOTE: It is highly recommended that a 4 row core radiator be used to provide sufficient cooling for the V8 engine.
Thank you for choosing Trans-Dapt Performance for your high performance engine conversion kit.
Think safety! Do not use bumperjacks when doing this conversion! Frame jacks are mandatory.
You should also have a floor jack and a cherry picker or overhead hoist.
An engine swap is a precision project. Read and understand all aspects of these
instructions before beginning the conversion.
INSTALLATION INSTRUCTIONS
ENGINE SWAP KIT
PART #4689
CHEVY V8 with TURBO 350 or 400 into
CHEVY S-10, S-15, BLAZER & JIMMY
Note: You must purchase Transdapt #4235 rubber mount pads and shells to complete this engine swap, (Use # 4227
for solid mount applications). If you select to use a standard stick shift or 350 Turbo automatic transmission, you
can use the stock S-10 crossmember with some slight modification. If you use a 400 Turbo automatic
transmission, you must purchase Trans-Dapt crossmember mount #9714 for S-10 pickup applications or
#9715 for S-10 Blazer applications, which are sold separately.
We highly recommend the use of Hedman Hedder #69490 to complete this swap. When using this hedder. slight
modification of the automatic transmission case is required for clearance.
4689-InstructionSheet-090109.cdr
12438 Putnam Street Whittier, CA 90602 tel [phone] fax [phone]
website: www.tdperformance.com email: [e-mail]
Chevy motor
mount #22188497.
Install as shown
L
Trim corner of
motor mount
to match plate.
R
Driver’s
Side
Passenger
Side
Firewall
(Front View)
New
Contour
Old Contour
2”
5”
Firewall
(Top View)
Tunnel
Illustration: A
Illustration: B
DAPTDAPT
DAPT
PERFORMANCE PRODUCTS