The largest was used only in Chevy pickups because of its taller deck height. This lineage of Chevy inline six came in four different bore/stroke/displacement combinations: 194, 230, 250, and 292 cubic inches. There are parts available for these engines, although usable core engines are becoming scarce.Īs we mentioned earlier, Chevy has built overhead valve inline sixes since 1929, but we will deal with only the later model engines used from 1962. There was power with this engine as well-in 1967 the 230-cubic-inch Pontiac OHC 6 was rated at 215 horsepower with 240 ft.-lbs. of torque, a Rochester Q-jet four-barrel carb, and 10.5:1 compression. These engines are very modern looking with the factory ribbed cam and front timing belt covers. If you’re into a dramatic-looking engine, consider the Pontiac Overhead Cam (OHC) inline six that came in the 1966-67 Tempest and 1967 Firebirds. We’ll go over some material for the Chevy 6 as it’s the most popular-but the AMC, Ford, Pontiac OHC 6, Mopar slant six, and Jeep engines are other obvious candidates. But for a lightweight street rod with an open engine bay, a Chevy sixcould be a great engine. The biggest drawback to an inline six is its physical length and it will be smaller in displacement because it only has six cylinders. While most street rods built before WWII were Flathead-powered inline fours and later V8 Fords, Chevrolet was always considered a very conservative company with inline six-cylinder engines with overhead valves. Jeff Smith: There is a whole subculture of hot rods out there running around with “alternative” engines. Are they worth building for a mild rat rod? I’m getting tired of seeing small-block Chevys and LS engines everywhere. I was interested in the engine because it’s different. I was at my local car show the other day and I talked with a guy who built an inline Chevy 6 for his street rod.
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