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Old February 17th, 2012, 08:50 PM   #12 (permalink)
Aceshigh
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Join Date: May 2009
Location: Chicago Burbs
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Quote:
Originally Posted by Tedd Thompson View Post
This is your forum and your car but a 394 would give you 345+ Hp with a lot less hassle and modifications.

you still have a 4000 LB car to try to get to go fast....Tedd
Two things to keep in mind here with Tedd's information he offered here.

1st. This 1964 10.5:1 compression special edition 394 he's talking about was 345 GROSS hp rated.
When talking about a modern engine against a Vintage pre-1972 engine, the HP rated values are not the same.
You have to put both engines into the same measurement system to get an accurate perception to compare them.
I'd say a very large % of hot rodders don't do this.

GROSS VS NET HP RATINGS

345hp in the Gross rated system is more like 280-290hp in today's SAE/net hp system that's been in use for 40 years now.
So to make things a fair comparison, using the
SAE/Net HP: (1972-present)
394ci 6.5L big block = 280hp VS 327ci 5.3L LS small block = 315hp

GROSS HP: (pre-1972 method)
394ci 6.5L big block = 345hp VS 327ci 5.3L LS small block = 375-385hp.

2nd.> Todays' hot performance Pony Cars (Camaro SS, Shelby GT500,) are all about 4000lbs.
They're doing 12's with the modern drivetrains
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Last edited by Aceshigh; February 18th, 2012 at 06:20 AM.
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