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Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2017 Posts: 308 'Bolter | | 'Bolter Joined: Jan 2017 Posts: 308 | How could one determine HP, with a rebuilt engine bored over .40, Fenton Headers, 848 rebuilt head with new rocker arms and shafts. Weber 32/36 carb with heat from Radiator. Need anything else--Thanks Bill | | | | | Joined: Feb 2004 Posts: 29,778 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,778 | Just do what everybody else does- - - - -lie about it! To get an accurate reading, you'll need a dyno.
Horsepower = torque X RPM divided by 5250.
Then you'll need to dial in a correction for ambient temperature and humidity. On average, the correction factor reduces the raw HP figure by 5 to 7 percent. There's a computer simulation program called "Desktop Dyno" that seems to be pretty accurate. I've done a few fantasy engine builds with D/D on small block Chevy engines, using the same parts specifications as ones I've actually built and dyno'ed, and the numbers came out close to equal for the real thing and the computer simulation.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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