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Thread: chev 4X4

  1. #1

    Post chev 4X4

    i have a 94 chev cheyanne 4X4 with a 5.7 liter or a 350 with a 700R4 transmission i am wondering what the horsepower of my motor is

  2. #2

    dwill3015's Avatar
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    Jan 2007
    Yacolt, Washington
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    350 variants
    Years: 1973-1980

    The 1973-1974 L82 was a "performance" version of the 350 producing 250 hp (186 kW) and 285 lbft (386 Nm) from 9:1 compression. It was down to 205 hp (153 kW) and 255 lbft (346 Nm) for 1975. It was the optional engine again in 1976-1977, producing 5 hp (4 kW) more. The 1978 L82 recovered somewhat, producing 220 hp (164 kW) and 260 lbft (353 Nm), and then 5 hp (4 kW) and 10 lbft (14 Nm) more for 1979. 1980 saw yet another 10 hp (7 kW) and 15 lbft (20 Nm).

    Years: 1981

    The L81 was the only 5.7 L (350 cu in) Corvette engine for 1981. It produced 190 hp (142 kW) and 280 lbft (380 Nm) from 8.2:1 compression, exactly the same as the 1980 L48, but added computer control spark advance, replacing the vacuum advance.

    Years: 1982, 1984

    The 1982 L83 was again the only Corvette engine (and only available with an automatic transmission) producing 200 hp (149 kW) and 285 lbft (386 Nm) from 9:1 compression. This was again the only engine on the new 1984 Vette, at 205 hp (153 kW) and 290 lbft (393 Nm). The L83 added Cross-Fire fuel injection (twin throttle-body fuel injection). Since GM did not assign a 1983 model year to production Corvettes, there was also no L83 for 1983.

    For the new Generation IV V8, see GM L98.
    Years: 1985-1992

    The new 1985 L98 added tuned-port fuel injection "TPI", which produced 230 hp (172 kW) and 330 lbft (447 Nm). It was standard on all 1985-1991 Corvettes (rated at 230 hp (172 kW)-250 hp (186 kW) and 330 lbft (447 Nm)-350 lbft (475 Nm)). Optional on 87-92 Chevrolet Camaro & Pontiac Firebird models (rated at 225 hp (168 kW)-245 hp (183 kW) and 330 lbft (447 Nm)-345 lbft (468 Nm)) 1987 versions had 10 hp (7 kW) and 15 lbft (20 Nm) more thanks to 9.5:1 compression and a change to hydraulic roller camshaft. Compression was up again in 1991 to 10:1 but output stayed the same.

    The LM1 is the base 5.7 L (350 cu in) with a 4-barrel carburetor (usually with a Rochester Quadrajet) in passenger cars until 1988. Throughout its lifespan, it received either a points, electronic, and/or computer-controlled spark system, to conventional and feedback carburetors.

    LM1s were superseded with the LO5 powerplant after 1988.

    The L05 was introduced in 1987 for use in Chevrolet/GMC trucks in both the GMT400 (introduced in April 1987 as 1988 models) and the R/V series trucks such as the K5 Blazer, Suburban, and rounded-era pickups formerly classed as the C/K until 1996 which includes chassis cabs and 4-door crew cabs. Although usage was for trucks, vans, and 9C1-optioned Caprices, the L05 was also used with the following vehicles:

    1992/1993 Buick Roadmaster sedan and station wagon
    1991/1992 Cadillac Brougham (optional engine)
    1993 Cadillac Fleetwood
    1992/1993 Chevrolet Caprice Wagon (optional engine)
    1993 Chevrolet Caprice LTZ
    1992 Oldsmobile Custom Cruiser Wagon (optional engine)
    L05 usage was replaced by the GM LT1 after 1993 in GM B-Bodies until production ceased in 1996.

    In mid 1996 the L05 was equipped with Vortec heads used in the 1996 G30.

    The L31 replaced the LO5 in 1996 - known as the Vortec 5700. Known as the GEN 1+, this was the final incarnation of the 1955-vintage small block, ending production in 2005 with the last vehicle being a Kodiak/Topkick HD truck. Volvo Penta and Mercury Marine still produces the L31. The "MARINE" intake is a potential upgrade for L31 trucks.

    Mr. Goodwrench
    The GM Goodwrench 350 crate engine comes in several variations. The lowest priced uses the pre-1986 four-bolt casting molds with two dipstick locations; pre-1980 on the driver's side and post-1980 on the passenger's side. This engine was produced in Mexico since 1981 as the Targetmaster 350, and now the GM Goodwrench 350.[citations needed]
    Last edited by dwill3015; 04-13-2009 at 12:09 AM.
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
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