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L05s were used primarily with casting number 14102193 (64cc combustion chambers) cylinder heads with swirled intake ports—the intake ports were designed for fuel economy (the design was also shared with the 103 heads used on the 4.3L with TBI). The swirl ports (known to GM as a vortex chamber) along with the irregular shape of the combustion ...
A rear wheel drive bellhousing is displayed at right, and the integrated front wheel drive bellhousing is displayed at the lower right (in this case, as a part of the GM 6T70 Transmission). GM 60-Degree 2.8/3.1/3.4/3.5/3.9 L V6 (also used by AMC) Buick 3300/3800 V6; Cadillac HT4100/4.5/4.9 L V8; Isuzu all 3.2 and 3.5L DOHC V6
Starting around 1925 engine blocks and cylinder heads were now developed at each brand but were cast at Saginaw Metal Casting Operations. [3] In the mid-1960s, there were 8 separate families of GM V8 engines on sale in the USA. [4] [1] By the 1970s, GM began to see problems with their approach.
The head casting number (which can be viewed from the passenger side of the vehicle just in front of the valve cover) was 706. Some heads with this casting number would fail (but not all of them) as GM had different suppliers for the same head. The failure was due to undetected porosity around the oil drains in the head. [93]
GM stopped installing big-block V8s in the Silverado HD trucks when the GMT800 series was discontinued in 2007. Vortec 8100s were built at GM's Tonawanda Engine plant while the engine block and cylinder head were cast at Saginaw Metal Casting Operations. The last L18 was manufactured in December 2009. L18 applications:
In 1969 the 350 HO was upgraded again with the addition of the 400 HO cam, commonly referred to by enthusiasts as the 068 cam. Also added was the #48 casting number heads with a 68 cc (4.15 cu in) chamber for higher compression, along with larger 2.11 and 1.77 in (54 and 45 mm) valves.
the 299-cubic-inch (4.9 L) T-head engine used in the 1911–1913 Chevrolet Series C Classic Six; the 271-cubic-inch (4.4 L) L-head engine used in the 1914–1915 Chevrolet Light Six; the Chevrolet Stovebolt engine series, introduced in 1929; the Chevrolet Turbo-Thrift engine series, introduced in 1962
The following year the motor became available in the compact Chevy II also. For the 1970 model year the 396 was bored 0.03 in (0.76 mm), resulting in a 402 cu in (6.6 L) engine. Despite this, the motor was still badged as a 396. 1970 was also the final production year for the L78.