Small Block 90 Degree Engines

221 cubic inch
• Bore and stroke of 3.50 X 2.87.
• One of the rarest engines in its’ class.
• Produced from 1962 to 1963
• Compression ratio of 8.7:1
• 143 Horsepower

260 cubic inch
• A hybrid of the 221.
• Bore and stroke of 3.80 X 2.87
• Larger intake and exhaust ports.
• 164 Horsepower
• Was used in one of the first Cobra’s.

289
• Bore and stoke 4.00 X 2.87
• 200 Horsepower w/ 282 ft-lb torque
• Two barrel Ford carb
• Hydraulic camshaft
• In 1964, the 289 was available at 210 horsepower, four barrel carb, cast iron intake manifold and compression ratio of 9.0:1
• In 1965 the 289 became was now at 225 horsepower, larger four barrel carb and a compression ratio of 10.0:1 This engine was available till the 1967 model year.
• In 1968, the engine was reduced to 195 horsepower.

289 HiPo
• Available from 1964 to 1967
• Higher nodularity content in block w/ larger two bolt main caps.
• Counter weight balanced crankshaft.
• 3/8 inch rod bolts
• Screw in rocker studs w/mechanical lifter camshaft.
• Dual point distributor.
• Ford 480 cfm four-barrel carb atop a cast-iron intake manifold.
• 271 horsepower at 6,000 RPM w/312 ft-lb’s of torque.

302
• Produced in 1968
• Cast iron crankshaft
• forged rods
• cast pistons
• hydraulic camshaft
• available with 2 or 4 barrell carburator
• horsepower varied from 210 to 230 depending on carburator.
• Standard 302 was equipped with 2 barrel from 1969 to 1983.

302 Tunnel Port
• Did not see production for consumer market.
• Commonly referred to as the 302 TP for Tunnel Port
• Pushrods were fitted inside a sleeve
• Intake ports were oversized
• Intake/Exhaust was 2.12inches and 1.54inches
• Two versions available, one with conventional rocker arms for the Trans Am race series and the other using Nascar shaft mounted rocers.
• Engines were built by Ford foundry and not by the racing circuit

302 Boss
• Top performer of the 90 degree family.
• Production from 1969 to 1970.
• Available in Mustang 302 Sportsroof and Mercury Cougar Eliminator only.
• Four bolt mains
• Screw in frost plugs
• Canted valves, 2.23 in. / 1.71 in.
• Cylinder heads from Ford’s 335 Series family.
• Threaded rocker arm studs
• Push rod guide plates.
• Stamped steel sled-fulcrum rockers
• Mechanical lifter camshaft
• dual plane, single four barrell aluminum intake.
• Holley 780cfm carb.

351 Windsor
• Not to be confused with the 351 Cleveland.
• A basic 302 with extended deck height with thicker cylinder walls
• Primarily the only interchangeable part are the heads with other small blocks from the 90 degree family.
• In 1969, the 351 Windsor reached its’ highest horsepower rating of 290 at 5800RPM