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This was Chevrolet's second 4.3L power plant; four other Chevrolet engines displaced 4.3L: the Vortec 4300 (a V6 based on the Chevrolet 350 cu in (5.7 L), with two cylinders removed), the original 265 cu in (4.3 L) V8 in 1954, a bored version of the stovebolt-era 235 inline six displacing 261 cu in (4.3 L), and a derivative of the Generation II ...
These carburetors did not open progressively; they were either open or closed. The J-2 engine also had a slightly thinner head gasket, raising compression to 10.0:1. It was advertised with gross power and torque ratings of 312 hp (233 kW) at 4600 rpm and 415 lb⋅ft (563 N⋅m) at 2800 rpm.
The Chevrolet engine debuted in 2002 with part number 88958604 and sold for about $5000 in 2012. [28] The 604 engine is equipped with aluminum heads, forged steel crankshaft, and an aluminum intake. [28] It produces about 400 horsepower and 400 foot-pounds of torque with a 9.6:1 compression. [28]
Chevrolet introduced the 350 cu in (5.7 L) LT-1 in 1970, making it available in both the Corvette and Camaro. It was an optional engine in the Corvette, and available as part of the high-performance ZR-1 option. Between 1970 and 1972, only 53 ZRs were produced, making it one of the rarest Corvettes.
In an internal combustion engine, a head gasket provides the seal between the engine block and cylinder head(s). Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. [1] Leaks in the head gasket can cause poor engine running and/or overheating.
The 432.3-cubic-inch (7.1 L) 432 had a 4.875 in × 3.86 in (123.8 mm × 98.0 mm) bore and stroke. [14] In 1973 and 1974, it produced 190 hp (142 kW) net at 3200 RPM and 331 lb⋅ft (449 N⋅m) net torque at 1600 RPM in 1973. [14] There was also a version with enlarged crankshaft journals. The 432 was a 401 with a 478 crankshaft.