Auto Parts: 4.3 CPI engine replacement, crankshaft sensor, blazer s10


Question
I have 92 S10 Blazer, 4.3 CPI, with auto. vin W.  Had eng. knock, pulled and found spun bearing. Went to local wholesale engine place and bought long block.  When I got home and unwrapped and started checking the two blocks I could see a major difference.  1. It did not have the internal balancer, 2. the block had an opening  for a mechanical fuel pump.  I have not taken the time to check the angle of the heads or anything else.   Will this engine work WITHOUT modifications other than blanking off the fuel pump cavity?? I would think that my flywheel would be wrong + whatever else.  I need to find something to show the place I bought the engine from that it is not the correct one.
Where to find list of what works?
Thanks for your time


Answer
Hi Jim,

I'm having a hard time deciphering your question so I'll answer it by including the complete interchange for your application and if that isn't enough info, reply with a follow-up and I'll see what I can do.

Here is the complete interchange for YOUR application (1992 s10 Bla, 4.3 CPI (VIN "W"):

3005243
BLAZER S10/JIMMY S15 92-93 (6-262, 4.3L), CPI (VIN "W")
S10/S15/SONOMA 92-93 6-262 (4.3L), CPI (VIN "W")
+*+*+*+*+*+*+*+*+*+*+*+*
NOTES
*+*+*+*+*+*+*+*+*+*+*+*+
Chevrolet 4.3L (6-262).
Top mounted spark plug wires (to distributor cap).
Change induction, exhaust & electrical systems as necessary.
No crankshaft sensor (in timing cover).
|A| thru |F| interchange as shown in notes
-------------------------------------------------------
Interchanges A-thru-F listed below:
---------- A ----------
ASTRO 92-93 (6-262, 4.3L), CPI (VIN "W"), AWD
BLAZER S10/JIMMY S15 92-93 (6-262, 4.3L), CPI (VIN "W"), 4x4
BRAVADA 92 (6-262, 4.3L), CPI (VIN "W")
BRAVADA 93 (6-262, 4.3L, VIN "W")
S10/S15/SONOMA 92-93 6-262 (4.3L), CPI (VIN "W"), 4x4
SAFARI (GMC) 92-93 (6-262, 4.3L), CPI (VIN "W"), AWD
---------- B -----------
BLAZER S10/JIMMY S15 92-93 (6-262, 4.3L), CPI (VIN "W"), 4x2
S10/S15/SONOMA 92-93 6-262 (4.3L), CPI (VIN "W"), 4x2
---------- C -----------
ASTRO 92-93 (6-262, 4.3L), CPI (VIN "W"), 4x2
SAFARI (GMC) 92-93 (6-262, 4.3L), CPI (VIN "W"), 4x2
---------- D -----------
ASTRO 94 (6-262, 4.3L), CPI (VIN "W"), AWD
ASTRO 95 (6-262, 4.3L, VIN "W"), AWD, steel timing cover
BLAZER S10/JIMMY S15 94 (6-262, 4.3L), CPI (VIN "W"), 4x4
BLAZER S10/JIMMY S15 95 (6-262, 4.3L, VIN "W"), 4x4, top mtd spark plug wires on dist
BRAVADA 94 (6-262, 4.3L, VIN "W")
S10/S15/SONOMA 94 6-262 (4.3L), CPI (VIN "W"), 4x4
S10/S15/SONOMA 95 6-262 (4.3L), CPI (VIN "W"), 4x4, top mtd spark plug wires on dist
SAFARI (GMC) 94 (6-262, 4.3L), CPI (VIN "W"), AWD
SAFARI (GMC) 95 (6-262, 4.3L, VIN "W"), AWD, steel timing cover
---------- E -----------
BLAZER S10/JIMMY S15 94 (6-262, 4.3L), CPI (VIN "W"), 4x2
BLAZER S10/JIMMY S15 95 (6-262, 4.3L, VIN "W"), 4x2, top mtd spark plug wires on dist
S10/S15/SONOMA 94 6-262 (4.3L), CPI (VIN "W"), 4x2
S10/S15/SONOMA 95 6-262 (4.3L), CPI (VIN "W"), 4x2, top mtd spark plug wires on dist
---------- F -----------
ASTRO 94 (6-262, 4.3L), CPI (VIN "W"), 4x2
ASTRO 95 (6-262, 4.3L, VIN "W"), 4x2, steel timing cover
SAFARI (GMC) 94 (6-262, 4.3L), CPI (VIN "W"), 4x2
SAFARI (GMC) 95 (6-262, 4.3L, VIN "W"), 4x2, steel timing cover
-*/-*/-*/-*/-*/-*/-*/-*/-*/
NOTES
-*/-*/-*/-*/-*/-*/-*/-*/-*/
Chevrolet 4.3L (6-262).
Top mounted spark plug wires (to distributor cap).
Change induction, exhaust & electrical systems as necessary.
No crankshaft sensor (in timing cover).
|A| thru |F| interchange as shown in notes
----------- A -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
Change water pump as needed when interchanging between '90-93 S10's & vans.
|B| & |C| fit by swapping oil pans.
|D| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|E| & |F| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
----------- B -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
|A| & |C| fit by swapping oil pans.
|E| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|D| & |F| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
----------- C -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
|A| & |B| fit by swapping oil pans.
|F| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|D| & |E| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
----------- D -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
|A| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|B| & |C| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
|E| & |F| fit by swapping oil pans.
----------- E -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
|B| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|A| & |C| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
|D| & |F| fit by swapping oil pans.
----------- F -----------
VIN "W", option L35.
Conventional distributor.
C.P.I.
Balance shaft.
|C| fits; difference is cyl heads, valve covers and position of knock sensors. Switch knock sensors and wiring.  Be aware that valve covers will look different than customers.
|A| & |B| fit; difference is cyl heads, valve covers, oil pan and position of knock sensors. Switch oil pan and knock sensors.  Be aware that valve covers will look different than customers.
|D| & |E| fit by swapping oil pans.

I hope this helps you.

=================================================================

Looking for a reputable service technician? My advice on finding a good technician is: Steer clear of the dealership and 'chain' stores like Firestone, Sears, Pep Boys, Monro Muffler/Brake, Midas, etc. as they usually only employ ONE ASE Certified Tech just so they can say they do and chances are, that guy is the asst. manager or manager and is not in the store to diagnose/repair vehicles anyway. Find a service location in the link below or get some names out of the yellow-pages and do a drive-by. Garages that employ ASE Certified Technicians will be marked with the 'Blue-Seal' insignia. If unsure about whether a place employs Certified Techs, just ask to see their credentials. ALL ASE Certified Technicians will be PROUD to show and display their certificate(s).

Thanks for the question, I hope this information was helpful to you.
Fred
Knucklebusters Used Auto & Truck Parts, Inc.
www.knucklebusters.us
570-453-0910
"Re-use is the best form of recycling" Help us recycle by purchasing used parts from us!
Looking for an ASE Certified shop near you? ASE Certified Technicians are the BEST of the BEST!
Click here: http://www.ase.com/bluesealsearch/locator.php