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Grease Monkey
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Grease Monkey
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I found a website once that listed the net (vs. gross) on Chevrolet engines in the 1950's. I am specifically looking for 1956 right now. To prevent any confusion, gross (bare engine on dynamometer) is what was advertised, net was "as installed" in the car. Rear wheel was of course the entire car up the machine.
Does anyone have any knowledge on this?
Thx
Jim
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Jan 2002
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ChatMaster - 25,000
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ChatMaster - 25,000
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Which 1956 engine are you intrested in?
As an example the passenger car 235 engine had 140 advertised HP and 125 net.
The 140 was with no generator or water pump or exhaust and timing set for Max. HP.
In the car and at the rear wheels it would have been much less than 125 HP.
Last edited by Chev Nut; 05/08/20 05:21 PM.
Gene Schneider
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Grease Monkey
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Grease Monkey
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Gene,
Specifically the powerpack 205 horsepower engine. I am not sure, without looking at a brochure, what the next level down was for the 1956 V-8 265 CI.
Thx
Jim
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Joined: Jan 2002
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ChatMaster - 25,000
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ChatMaster - 25,000
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The 162 HP engine (stick shift) was 137 HP
The 170 HP PG enge 140
The 205 HP PowerPac engine 170 HP
In 1971 all makes rated the engines at net HP plus actual H P decreased due to emissions so HP droped quie a bit.
Gene Schneider
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Joined: May 2019
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Grease Monkey
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Grease Monkey
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Thx Gene,
Did you find this on a website, or information you have had for long time?
Jim
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Joined: May 2019
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Grease Monkey
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Grease Monkey
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Gene,
What about the 1955 180 HP engine? 160 Net?
Thx
Jim
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
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Gene Schneider
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Joined: May 2019
Posts: 21
Grease Monkey
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Grease Monkey
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Gene,
What about a 1961 Impala SS with the 409, 360 HP and 11.25 : 1 compression ratio? I am referring to net HP.
Thx
Jim
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