Search results
Results From The WOW.Com Content Network
The engine had MPFI (multi-port fuel injection), which gave slightly more power and better fuel economy, and two valves per cylinder. The engine had a bore and stroke of 4 + 1 ⁄ 4 in × 4 in (108.0 mm × 101.6 mm), producing 290 hp (216 kW) at 4000 rpm and 410 lb⋅ft (556 N⋅m) at 3200 rpm. It was used by Mercury Marine, named the ...
The big-block engines initially used a forged crankshaft with a stroke of 3.975" for the 1965-1967 425 and 400 CID versions; starting in 1968, both the 400 cu in (6.6 L) and the 455 cu in (7.5 L) big blocks used a stroke of 4.25 in (108 mm), with crankshaft material changed to cast iron except in a few rare cases.
The Gen V engines were produced for the 1991 through 1995 model years and Gen VI engines from 1996 on. If GM differentiates between these engines as such, shouldn't this article differentiate also? I have several references in book form which could help in this endeavor: Tom Currao (1997). How to Build & Modify Chevrolet Big-Block V-8 Engines ...
The block entered production in mid 1965 as the Mark IV 396 cu in (6.5 L) "Turbo-Jet," phasing out the first-generation W-series Big-Block. In its first year the 396 was available as the L78 option in Corvettes and full-sized ( Impala , Bel Air , Biscayne ) models, and as the L37 in the intermediate ( Chevelle ) model.
The top engine was a new 454 cu in (7.4 L) Turbo Jet V8 offered in 345 hp (257 kW) or 390 hp (291 kW) versions. Both the 250- and 265 hp (198 kW) Turbo Fire engines were designed to use regular gasoline while the 300 hp (220 kW) 350 Turbo Fire and both 454 Turbo Jet engines required premium fuel.
Power and performance were reduced. Engine offerings for 1971 included the 250-6, small-block V8s of 307 and 350 cubic inches; and big block V8s of 402 and 454-cubic-inch displacements. Horsepower ratings of those engines for 1971 ranged from 145 for the six to 365 for the RPO LS5 454 – all in gross figures. The LS6 454 V8 was gone forever.
The old 409-cubic-inch (6.7 L) "W" engine was discontinued early in the 1965 model year, so early-production '65s got the 409, available only in four-barrel 340 and 400 horsepower options. The new 396 Turbo Jet V8 was the first General Motors engine to receive the Rochester Quadra-Jet four-barrel carburetor that would become a mainstay until ...
Tonawanda Engine is a General Motors engine factory in Buffalo, New York. The plant consists of three facilities totaling 3.1 million square feet (290,000 m 2 ) and sits upon 190 acres (77 ha).