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Most power out of a 23* head pumpgas smallblock?

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Most power out of a 23* head pumpgas smallblock?

Postby FASTFATBOY » Sat Dec 27, 2008 9:19 pm

Whats the most anyone has seen? One that can be streetdriven.
Around 383 inches?

Anyone?
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Postby John W » Sat Dec 27, 2008 9:30 pm

At 383?? A friend has a N/A 10.7:1 383 thats been in the 10.2x's @3330lbs. Runs and raced on pump gas and easily street driven, yet not something I would want for daily driver with a long commute. Probably would dyno in the 580 range.
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Postby 3V Performance » Sat Dec 27, 2008 9:44 pm

355ci steel heads, 625hp on 93 pump gas

http://www.3vperformance.com/streetperformance.html

Track times will come in the spring when snow melts. :D


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Postby SStrokerAce » Sat Dec 27, 2008 10:57 pm

Wait till Larry shows up!

600hp is very doable.... 700hp on 23° heads is very hard!
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Postby 3V Performance » Sat Dec 27, 2008 11:06 pm

Most power out of a 23* head pumpgas smallblock and 383ci?

700hp is very impressive indeed.
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Postby SStrokerAce » Sat Dec 27, 2008 11:24 pm

Yeah 383's don't make that easy to do!!!! Unless you make a 383 the hard way with a 3.500" stroke and a 4.155" bore! Even then with 23° heads?
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Postby FASTFATBOY » Sat Dec 27, 2008 11:25 pm

John W wrote:At 383?? A friend has a N/A 10.7:1 383 thats been in the 10.2x's @3330lbs. Runs and raced on pump gas and easily street driven, yet not something I would want for daily driver with a long commute. Probably would dyno in the 580 range.

Mine would run that at 3300lbs I think, I streetdrive it alot, it has overdrive. I wouldnt drive it everyday. If I was younger I would.

Just fishing to see if I am at the limit of what I have, Guess my next move is putting the engine/trans in a much lighter body.

I think I am around 600hp.
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Postby chevy_power » Sat Dec 27, 2008 11:31 pm

3V Performance wrote:355ci steel heads, 625hp on 93 pump gas

http://www.3vperformance.com/streetperformance.html

Track times will come in the spring when snow melts. :D

Tom

Two thumbs way up tom, that's impressive! :o
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Postby 3V Performance » Sat Dec 27, 2008 11:55 pm

chevy_power wrote:Two thumbs way up tom, that's impressive! :o

Thanks it was alot of fun. We built that engine as a circle track engine for him a few years before. He decited to change things up and do some street / drag racing so we converted it over.

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Postby bigjoe1 » Sun Dec 28, 2008 11:17 am

I have seen good 383 motors that were in the 615 to 625 range on pump gas-- No days, if you wanted more HP, why would you only build a 383 ?? Bigger is allways better

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23* power

Postby blakdawg » Sun Dec 28, 2008 12:11 pm

Yea! six and a quarter on pump gas w/23*heads and a 355 no less. Very nice Tom. I'm w/ Big Joe though,if some's good more's better.You get up in that range you're gonna be needin a better block and crank anyway,why not go BIG.
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Postby jeffmckc » Sun Dec 28, 2008 12:17 pm

pump gas cubic inches rule the day!
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Postby FASTFATBOY » Sun Dec 28, 2008 8:12 pm

bigjoe1 wrote:I have seen good 383 motors that were in the 615 to 625 range on pump gas-- No days, if you wanted more HP, why would you only build a 383 ?? Bigger is allways better

JOE SHERMAN RACING ENGINES

Well Mr Joe, 383 is kinda what I ended up with. Got a killer deal on a shortblock. 396 is about the limit on a 2nd gen LT1 engine anyway. The safe limit and streetdrive it.

SO I have pretty much peaked is what I am getting from you guys?

Guess I need to leave it alone and enjoy it. Lighten the car, more converter and try to get a 10.69 out of it.
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Postby lun40119 » Sun Dec 28, 2008 9:00 pm

What about this guy..............

http://advancedinduction.com/

Whats the deal with this thing I think it is the same cube and style as your engine.............do the math I used the calculator at Prosystems.
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Postby 1989TransAm » Sun Dec 28, 2008 9:27 pm

The AI 383 has 530rwhp. If a 15% drivetrain loss that works out to around 625hp at the motor.
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