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A 302 V8 with a 4-barrel carburetor (designated "4V") in a 1968 Mercury Cougar. In 1968, the small-block Ford stroke was increased from 2.87 in (72.9 mm) to 3 in (76.2 mm), giving a total displacement of 4,942 cc (4.9 L; 301.6 cu in). The connecting rods were shortened to allow the use of the same pistons as the 289.
The high-performance connecting rods are the same as used in the 289 HiPo, 5.155" vs 5.09" for the stock Windsor 302. They are capable of handling up to ~8k RPM, aided by a spot face for 3 ⁄ 8 in (9.5 mm) bolts with a unique football-shaped head (vs 5/16 for standard small blocks), and beefier cap.
289 V8 - (made after August 3, 1964) - had 6 bolts holding bellhousing to block; 302 Cleveland (Australia) 351 Cleveland V8 (not the 351 Cleveland M-block engine) 351 Boss; 351 Cobra Jet; 302 Windsor V8; 351 Windsor V8; 400 Cleveland Ford 335 engine#400 V8 aka 400FMX certain 1973 casting numbers D1AE and D3AE, mated to the FMX transmission)
Actually, the 302C and 351 used the same block and pistons. The crank and RODS were different to compensate. The heads on the 302 were closed chamber vs the 351 open chamber. The 302 was only available as 2v, until the XC Falcon era when the thermoquad carb became standard. This was also used on the 351 and listed as a 4v 351.
The Fork and Blade V8 used a novel approach for the piston connecting rods, which meant two connecting rods shared one bearing on the crankshaft, which allowed for a short crankshaft and a smaller overall engine size. 1932–1953 Flathead V8; 1940–1950 Ford GAA engine, exclusively for armored fighting vehicle military use
The stroke and deck height on the 290 and 343 were increased by 0.16 in (4.06 mm) on both engines, becoming the 304 cu in (5.0 L) and 360 cu in (5.9 L), respectively. The 1970 AMX 390 remained at the same displacement by using a special connecting rod and piston for this year only.
A connecting rod, also called a 'con rod', [1] [2] [3] is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. [4] The connecting rod is required to transmit the compressive and tensile forces from ...
The simple three-main-bearing crankshaft attached two connecting rods to a single crankpin, one rod from each cylinder bank. As with other crankshafts, static and dynamic balancing was performed (as this video on the Ford flathead V8 shows). The short crankshaft proved quite durable in comparison to six-cylinder engines when roughly handled.