32-Valve Heads, bolt on!
Thread Starter
Instructor
Joined: Aug 2005
Posts: 212
Likes: 0
32-Valve Heads, bolt on!
Has anybody actually tried theese heads?
+ 174 HP. direct bolt on. For Chevy small, or bigblock.
http://www.araoengineering.com/
+ 174 HP. direct bolt on. For Chevy small, or bigblock.
http://www.araoengineering.com/
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Never even heard of such a thing. Damned impressive, if you ask me! I don't even wanna know how much they cost! Although, the website does say "for about the price of a blower". Hmmmmmm...........
Scott
Scott
Burning Brakes
Joined: Oct 2002
Posts: 914
Likes: 14
From: Aberdeen, Scotland
4 vlv'er
I have read about these somewhere .... a while back. I think they do harley heads that when bolted on were d*mn impressive.
Pretty cool if you ask me; however .... I am so limited with my stock BB hood that I don't see the point. I guess I think that I can have the best heads in the world; but if you are constricted on the way in Stock(ish) intake and run manifolds I think its just a waste of money.
Still way cool!
Carbster
Pretty cool if you ask me; however .... I am so limited with my stock BB hood that I don't see the point. I guess I think that I can have the best heads in the world; but if you are constricted on the way in Stock(ish) intake and run manifolds I think its just a waste of money.
Still way cool!
Carbster
Thread Starter
Instructor
Joined: Aug 2005
Posts: 212
Likes: 0
Recommended for street use on 350 cu. : $5999.-
Horsepower: 475 - 575HP
Use standard intake manifolds, cam, pistons to 10.5:1 comp ratio, Hooker or Stahl 7 bolt pattern exhaust headers
Kits include PR heads completely assembled, valve covers, rockers, head bolts, head gaskets and pushrods.
Anyway it sounds and look impressive.
Horsepower: 475 - 575HP
Use standard intake manifolds, cam, pistons to 10.5:1 comp ratio, Hooker or Stahl 7 bolt pattern exhaust headers
Kits include PR heads completely assembled, valve covers, rockers, head bolts, head gaskets and pushrods.
Anyway it sounds and look impressive.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Recommended for street use on 350 cu. : $5999.-
Horsepower: 475 - 575HP
Use standard intake manifolds, cam, pistons to 10.5:1 comp ratio, Hooker or Stahl 7 bolt pattern exhaust headers
Kits include PR heads completely assembled, valve covers, rockers, head bolts, head gaskets and pushrods.
Anyway it sounds and look impressive.
Horsepower: 475 - 575HP
Use standard intake manifolds, cam, pistons to 10.5:1 comp ratio, Hooker or Stahl 7 bolt pattern exhaust headers
Kits include PR heads completely assembled, valve covers, rockers, head bolts, head gaskets and pushrods.
Anyway it sounds and look impressive.
Safety Car
Joined: Sep 2005
Posts: 4,226
Likes: 643
From: Orange County Ca
So why does Chevy stick with a 2 valve push rod design for the new Ls3 430 hp base corvette?
Other myths that aren't necessiarly true:
you need forged pistons---not for the above engine.
you need roller tipped rocker arms---not for the above engine
you need a forged crank---not for the above engine
Those heads are kind of cool looking!
Other myths that aren't necessiarly true:
you need forged pistons---not for the above engine.
you need roller tipped rocker arms---not for the above engine
you need a forged crank---not for the above engine
Those heads are kind of cool looking!
Last edited by Sayfoo; Mar 3, 2009 at 10:09 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Read the second post: I very plainly said I don't even wanna know how much they cost!!!!!!
Just kidding, but about the new 'vettes still having pushrod engines, I think I remember reading somewhere that it was because an overhead cam engine would be too wide or tall or something like that. Here's another one: Why in God's name did they get rid of the hideaway headlights? They were a Corvette Icon, some people were very upset about it when the c6's first came out! (some of us are STILL upset about it.....grumble, grumble.....) Answer: Chevy wants to sell corvettes in europe, and hideaway headlights are illegal over there. Sometimes things that seem to make no sense at all actually do have good reasons for being so.
Anyway, yeah, those 4 valve heads.......I feel like it's finally the future!!!!! Now where's my flying car.......
Scott
Just kidding, but about the new 'vettes still having pushrod engines, I think I remember reading somewhere that it was because an overhead cam engine would be too wide or tall or something like that. Here's another one: Why in God's name did they get rid of the hideaway headlights? They were a Corvette Icon, some people were very upset about it when the c6's first came out! (some of us are STILL upset about it.....grumble, grumble.....) Answer: Chevy wants to sell corvettes in europe, and hideaway headlights are illegal over there. Sometimes things that seem to make no sense at all actually do have good reasons for being so.
Anyway, yeah, those 4 valve heads.......I feel like it's finally the future!!!!! Now where's my flying car.......
Scott
Pro
Joined: Dec 2008
Posts: 531
Likes: 0
From: Frisco TX
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
Chevy and the aftermarket tried it. As long as your bore is big enough for good size single valves, you get more flow. If there was anything to this, they would have been on the market by all the big-name manufacturers long ago. There's too much trouble with running a pushrod engine with 4 valves, too many things can go wrong when stuff gets just a little bit out of square or adjustment. Now as Ed said, run a pair of overhead cams and all bets are off.
Have you guys seen the rotating valve setup? There are rectangular holes in what amounts to a row of valves that look a lot like a cam. No moving valves, no springs, everything is ceramic sealed. It's a great idea, the next realistic step but the guy that has the patent on it won't let anyone else in on it and doesn't have the funds to get it thru a rigorous R&D. I'll see if I can find a link, it's damned impressive.
Have you guys seen the rotating valve setup? There are rectangular holes in what amounts to a row of valves that look a lot like a cam. No moving valves, no springs, everything is ceramic sealed. It's a great idea, the next realistic step but the guy that has the patent on it won't let anyone else in on it and doesn't have the funds to get it thru a rigorous R&D. I'll see if I can find a link, it's damned impressive.