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OHC6 Pontiac 66-69 4 barrel. Your choice of 230 or 250 crankshaft. Compression ratio of 7.5 to 11.5 to one. Three different heads available. Rebuildable bone $1,200.00 for automatic and $1,400.00 for...

66-67 Pontiac 230 Cube one barrel can be turned into a 250 cubic inch with a 250 Cheve crank. If it has a 230 1v head the compression ratio will be 10.5 to one. With Felpro head gasket which is...

Gas mileage can be boosted by running synthetic oil in engine, trans, power steering, rear end and synthetic grease on wheel bearings. Parts will last at least twice as long. Pontiac made a 2:56...

40 Years of daily drivers. 39+ MPG With 4 barrel, 266 Cube engine, 38% Overdrive Borg Warner T5 Trans,2:56 Rear end, freeway only at 65 MPH. Now running a 2:41 Rear end and power steering has been...