Inliners International Forums General Discussion Engines GM 4 cylinders 151 153 181

Have you considered a 2.9 Vortec 4 out of a colorado - they came with manual and automatics. Make 185 HP/190 #tq. EFI from the factory.

I have the 5 cylinder version in my colorado daily driver - on the highway it gets darn close to 30 mpg. And its 100% stock.