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Aluminum cylinder heads (Corvette only) were released part way through the 1986 model run, modified for 1987 with D-ports, and continued through the end of L98 Corvette production in 1991 (still used on ZZx 350 crate engines until 2015 when the ZZ6 received the fast burn heads). [22] The L98 V8 was optional in January 1987–1992 Chevrolet ...
The L98 is a slightly modified version of the L76, specific to Holden vehicles. Since Holden did not use the displacement on demand technology of the L76, some redundant hardware was removed to form the L98. Power increased to 270 kW (362 bhp) at 5700 rpm and 530 N⋅m (391 lb⋅ft) at 4400 rpm.
However, the C4's performance was hampered by its L98 250 hp (186 kW) engine until 1992, [7] when the second-generation Chevy small block, the 300 hp (224 kW) LT1, was introduced, markedly improving the C4's performance. 1996 was a high point of small block engines development and the 330 hp (246 kW) LT4 was introduced in all six-speed manual ...
The L98 350 continued with 230 hp. 1987: 30,632: Callaway twin-turbo offered through dealers with GM warranty. The L98 350 had 240 hp. 1988: 22,789: New wheel design; all white 35th Anniversary special edition coupe. The L98 350 continued with 240 hp. 1989: 26,412: ZF 6-speed manual replaces Doug Nash 4+3. 1990: 23,646: ZR-1 is introduced with ...
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.
Studies show that keeping your head at the appropriate height—about 2 inches (or 5 centimeters) off the bed—helps air flow into the lungs and stabilizes your respiratory function. However ...
Heads featured a new raised lip for improved valve cover sealing and the two center intake bolts were changed from 90-degree orientation to 72 degrees. G92 and L98 cars got the Borg-Warner HD 7.75-inch (197 mm) four-pinion rear end, produced for GM's Holden of Australia (Firebird WS6 cars went to this unit in 1986). These units can be ...
A secretary bought three shares of her company's stock for $60 each in 1935. Grace Groner reinvested her dividends for 75 years, and her stake ballooned to $7.2 million.