Head comparison
Supreme Member
Joined: Sep 2001
Posts: 6,111
Likes: 53
From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Out of the box, the vortecs will make more power and torque
than the S/R torquers.
They simply flow much more air.
The vortecs have a advanced fastburn combustion chamber.
The S/R torquers are a well made head. The as cast ports don't flow much more than a stock GM head. But, they can be greatly improved with porting.
Was not aware Dart made a 49cc head.
than the S/R torquers.
They simply flow much more air.
The vortecs have a advanced fastburn combustion chamber.
The S/R torquers are a well made head. The as cast ports don't flow much more than a stock GM head. But, they can be greatly improved with porting.
Was not aware Dart made a 49cc head.
Thread Starter
Member
Joined: Apr 2003
Posts: 267
Likes: 0
From: Houston TX
they do, I didn't believe it either, but I saw a pair, they look weird with this tiny chamber but its almost kidney shaped because they fit 2.02/1.6 valves in it... it's supposed to be for MEGA-compression, with 9:1 pistons (with a 64 cc head) it's supposed to increase compression to 12-13... I don't know if I believe that, BUT they look promising
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