Buick Wildcat Engines by Year

The Wildcat was Buick's full-size performance car, with Nailhead V8s and later the 430 and 455. Ratings are gross through 1971 and SAE net from 1972.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

full-size B-body (1963–1970): 1963 · 1964 · 1965 · 1966 · 1967 · 1968 · 1969 · 1970

full-size B-body (1963–1970)

1963 Wildcat engines

Engine	Rated	Offered in
401 V8	325 hp gross	Wildcat

1964 Wildcat engines

Engine	Rated	Offered in
401 V8	325 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom
425 V8	340 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom, (option)
425 V8	360 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom, (option), Gran Sport Performance Group (1966)

1965 Wildcat engines

Engine	Rated	Offered in
401 V8	325 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom
425 V8	340 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom, (option)
425 V8	360 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom, (option), Gran Sport Performance Group (1966)

1966 Wildcat engines

Engine	Rated	Offered in
401 V8	325 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom
425 V8	340 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom, (option)

1967 Wildcat engines

Engine	Rated	Offered in
430 V8	360 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom

1968 Wildcat engines

Engine	Rated	Offered in
430 V8	360 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom

1969 Wildcat engines

Engine	Rated	Offered in
430 V8	360 hp gross	Wildcat, Wildcat Deluxe, Wildcat Custom

1970 Wildcat engines

Engine	Rated	Offered in
455 V8	370 hp gross	Wildcat Custom

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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