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Chevrolet 250 Inline 6 Cylinder Engine

The Chevy 250 inline 6 cylinder engine was produced between 1966 and 1985 for the U.S. market. It was a reliable straightforward engine that came to fame mostly due to the fact that was offered alongside the Chevy 230 inline 6 in the all new Chevrolet Camaro. From 1974 to 1985 there was an integrated head produced for the 250 that offered a 1 barrel or 2 barrel carburetor variation. All 1 barrel integrated 250 inline 6 engines began with a casting number of 35, 37 or 1400. The 2 barrel variant has casting numbers that started with 36 or 1401. South America and Brazil in particular used the 250 inline 6 up until 1998 when it was finally discontinued.

 

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Engine Specifications

1967-1970 with 1 Barrel Carb
Max Brake Horsepower - 155 @ 4200 rpm
Max Torque - 235 @ 1600 rpm
Stroke - 3.53
Bore - 3.875
Compression - 8.5
Firing Order - 153624

1971 with 1 Barrel Carb
Max Brake Horsepower - 145 @ 4000 rpm
Max Torque - 225 @ 1600 rpm
Stroke - 3.53
Bore - 3.875
Compression - 8.0
Firing Order - 153624

1972 with 1 Barrel Carb
Max Brake Horsepower - 130 @ 4000 rpm
Max Torque - 205 @ 1600 rpm
Stroke - 3.53
Bore - 3.875
Compression - 7.7
Firing Order - 153624

1973-1974 with 1 Barrel Carb
Max Brake Horsepower - 100 @ 4000 rpm
Max Torque - 195 @ 1600 rpm
Stroke - 3.53
Bore - 3.875
Compression - N/A
Firing Order - 153624

1975-1977 with 1 Barrel Carb
Max Brake Horsepower - 105 @ 4000 rpm
Max Torque - 195 @ 1600 rpm
Stroke - 3.53
Bore - 3.875
Compression - N/A
Firing Order - 153624