The ZR2 used the 4300cc 4.3L power plant. Here are some specifications on this particular engine.


Displacement: 4300cc
Assembly Site: Romulus, Michigan
Horsepower: 190-195 hp @ 4400-4600 rpm
Torque: 250-260 lb-ft @ 2800 rpm

Applications:

-GMC Sierra/Chevrolet Silverado
-Chevrolet S-10/GMC Sonoma
-GMC Safari/Savanna
-Chevrolet Astro/Express
Engine Oil W/Filer 4.5 quarts 5W-30 or 10W-30 SG, SG/CC or SG/CD
Auto Trans W/Filer 5.0 quarts Dexron III ATF
Brake System DOT 3 fluid
CoolingSystem 12.1 quarts 50/50 mixture of distilled water and the specified ethylene glycol-based (green color) antifreeze or DEX-COOL silicate-free (orange color) coolant.
DO NOT MIX THE TWO TYPES!
Fuel Tank 20.0 gallons (1994-1997)
18.0 gallons (1998-2002)
Manual Transmission
Borg Warner T-5
New Venture NV3500
New Venture NV1500

2.9 quarts Dexron III ATF
2.2 quarts GM 2345349 synchromesh trans lube
2.9 quarts GM 9985648 synchromesh trans lube
Rear Differential 2.7 quarts SAE 80W-90 GL-5 gear lube
NOTE: DO NOT ADD LIMITED SLIP ADDITIVE
Transfer Case 1.3 quarts SAE 80W-90 GL-5 gear lube -OR-  Dexron III ATF
(Check your fluid to see which your truck uses.)




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Technical Topics

Calculations

How to wire a Relay

Winterizing Tips for your Zed

Disable DRL (Daytime Running Lights)

Synthetics

Changing Transfer case Vacuum Switch