JBA PERFORMANCE ENGINES - OLDSMOBILE

W31, W30, 442, Rocket Performance, these big and small block engine packages to an Oldsmobile enthusiast, are the epitome of competition and dominance. Within the flow chart of GM Muscle car pecking order, these models translate into victory, delivering the power and respect deserving only such a well-engineered multi-purpose machine as a performance Oldsmobile can deliver.

The combination of small block Oldsmobile factory parts; that make up a W31, have historically delivered the peak level of performance a Rocket 350 can delivered. JBA offers even further enhancements including balanced and blueprinted small block Oldsmobile custom engines, designed for the discerning enthusiast. These combinations make great gains when engineered to perform with aftermarket camshafts and high flow cylinder heads.

The high compression 400 CID 442 that debuted in 1965 was the beginning of a long line of big torque big blocks that powered track winning muscle cars, hot street machines and very popular jet boats all powered by Oldsmobile. A common deck height between model years means external visibility is common between these engines. The variety of bore size and stroke combinations up to the long 4.25 of the 455 combine with the big valve heads and aggressive camshaft of the W30 to make great combinations. These big blocks today respond incredibly well to alloy aftermarket heads with higher flow ports and bigger valves. JBA custom Oldsmobile engines feature blueprinted internal oil pumps and improved oiling systems to support the large 3.0 mains for sustained higher RPM on their externally balanced factory crankshafts or new steel cranks with increased stroke availability.

Oldsmobile Engine Families:
350, 400, 455

What is AntiCrate?
Engineering Team
Performance Engine Engineering Worksheet

Performance Engine Stages
Stage I
Stage II
Stage III
Stage IV (race only)
Stage Comparison

Performance Engine Families