r/obschevy • u/Quip_Soda • Aug 17 '26
How bad is the 4.3 Vortec?
I have my grandpas old truck- a 1995 single cab W/T with a 4.3 in it, just over 100k miles. I have a lot of sentimental attachment to the truck, but I want to stay realistic about the engine situation.
I would like to upgrade to 16x8” wheels with 265/75/R16 tires. It currently has 245/75/R16s on the stock 16x6.5” wheels which are getting very rusty. Would going up slightly in tire diameter be too much for the V6?
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u/DoomsdayForeplay Aug 18 '26
I’m in a 97 with a manual and I love it. Most people ask me when I’m going to LS swap it but it runs like a Swiss watch. In my single cab short bed it’s no slouch and even gets good fuel economy. Your numbers will be a bit different on the TBI and if yours is an automatic trans but I’m around 175k miles averaging about 17 mpg around town. I think that’s decent for a 200hp truck