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08-03-2017, 07:56 PM
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#1 |
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Registered User
Join Date: Apr 2016
Location: Miramar Florida
Posts: 153
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Horse Power
What Is The H-P Of A 1987 Silverado Automatic Trans With A/C
5.7 EFI Engine Thank You For The Answer Harley03joe |
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08-03-2017, 08:02 PM
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#2 | |
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Registered User
Join Date: Jan 2017
Location: Everett, WA
Posts: 146
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Re: Horse Power
Quote:
I got 185 from the GM archives |
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08-03-2017, 08:35 PM
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#3 | |
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Registered User
Join Date: Apr 2016
Location: Miramar Florida
Posts: 153
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Re: Horse Power
Quote:
I Was Thinking More Like 300 H-P ?? Thank You Harley03joe 
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08-03-2017, 10:00 PM
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#4 | |
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Registered User
Join Date: Jan 2017
Location: Everett, WA
Posts: 146
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Re: Horse Power
Quote:
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08-03-2017, 10:15 PM
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#5 | |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,227
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Re: Horse Power
Quote:
https://www.gmheritagecenter.com/doc...olet-Truck.pdf Don't forget that is SAE "net" horsepower, so it's through the air cleaner and full exhaust and with the engine accessory drive installed (power steering, alternator, air conditioning). The old numbers from the 1960's were "gross" horsepower, so that was with no air cleaner, open exhaust and no power robbing accessories. K
__________________
Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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08-03-2017, 10:23 PM
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#6 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,227
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Re: Horse Power
This is from the 1988 GMT400 info packet, but it is the same engine RPO L05.
I'm including it here because it shows the actual horsepower/torque curves. https://www.gmheritagecenter.com/doc...olet-Truck.pdf Incidentally - that's why we introduced the fuel injected TBI engines in the 1987 model year; to get a year early exposure before we came out with the GMT400 pickups for the 1988 model year. Truck management thought it was a bit to much to do an all new truck architecture and an all new engine all at the same time. K
__________________
Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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08-04-2017, 10:21 AM
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#7 |
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Registered User
Join Date: Jan 2014
Location: Swaledale, IA
Posts: 485
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Re: Horse Power
I am very happy they decided to do the engine release a year early - fuel injection in the 87' trucks along with what is, in my opinion, the best looking styling of the 73-87 run (not everyone will agree here!) makes the 87' the ultimate squarebody. Obviously that doesn't make them a fire-breathing hp demon still, but the driveability is very nice.
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08-05-2017, 07:57 AM
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#8 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: Horse Power
TBI is a great system, thanks for the info.
__________________
Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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12-03-2017, 06:19 PM
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#9 | |
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Registered User
Join Date: Apr 2016
Location: Miramar Florida
Posts: 153
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Re: Horse Power
Quote:
Harley03joe
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1931 Ford Like New And For Sale 2004 Harley Davidson Heritage Classic 1987 Chevy R 10 Silverado 2007 Azera 2011 Cadillac CTS Premium |
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12-04-2017, 10:51 AM
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#10 |
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Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,627
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Re: Horse Power
Very interesting. Thanks to all contributors. And Keith, to you especially with the archive materials. That's so cool to have access to that via you.
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12-04-2017, 03:28 PM
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#11 |
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Cruzzzn' Vet
Join Date: Jan 2005
Location: Porterville,Ca.
Posts: 1,918
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Re: Horse Power
My tired old 305 is probably just at 75 hp
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