bubba428
07-21-2007, 04:44 PM
I have posted this on a few V6 tech sites. Figure and body with a 3.4 may be interested. the only thing I don't mention is the pistons...the 00+ pistons are a MUST HAVE!!! I believe I was told 13.98:1 CR with stock pistons.
OK I've taken the time to get together some pictures and info on the 3400 top end. Before I started this project on my car. I spent nearly eight months researching the various cams, clutches, and other assorted goodies for the 3.4 RWD block. Shown nearly bare here http://img2.putfile.com/thumb/7/20117171533.jpg (http://www.putfile.com/pic.php?img=6058820)
The 3.4 RWD block was the biggest of the 60* V6s but was only 30hp stronger than the 2.8. thats because the iron heads from the Gen1 2.8 managed to make they're way to the 93-95 F-body 3.4.
These heads are shown here
http://img2.putfile.com/thumb/7/20117171482.jpg (http://www.putfile.com/pic.php?img=6058816)
and
http://img2.putfile.com/thumb/7/20117171496.jpg (http://www.putfile.com/pic.php?img=6058815)
The second issue was with the poor intake manifold design. the Runners in the lower intake were too short to account for any kind of intake acceleration.
Runners shown here
http://img2.putfile.com/thumb/7/20117171330.jpg (http://www.putfile.com/pic.php?img=6058814)
Now in my time researching ways to boost the out-put of the 3.4 with help from a member here I found a very detailed thread on a top end project that was not done by anyone but one guy. This out lined the benefits of the newer aluminum 3400 heads that were not only a direct bolt on but increased the power greatly. The 3400 heads had much larger valves a much smaller combustion chamber and much larger intake/exhaust runners.
The heads are shown here
http://img2.putfile.com/thumb/7/20117171583.jpg (http://www.putfile.com/pic.php?img=6058819)
and
http://img2.putfile.com/thumb/7/20117171547.jpg (http://www.putfile.com/pic.php?img=6058818)
You'll notice in the second picture the heads come factory with beehive valve springs which allows for a greater rev-potential, and 1.6:1 rockers. Now to take care of the intake, the 3400 intake manifold has 9in runners that are of a much larger diameter allowing for far better flow and aims the fuel injectors directly at the heads.
Shown here
http://img2.putfile.com/thumb/7/20117171422.jpg (http://www.putfile.com/pic.php?img=6058817)
and
http://img2.putfile.com/thumb/7/20116502743.jpg (http://www.putfile.com/pic.php?img=6058737)
Once all together gains of near 40hp were achieved putting the car at 170RWHP being 200hp at the flywheel. But that was with a stock tune and cam. I've come across a fairly large cam and am waiting on a computer system to get the absolute most out of this block. I'll have more info to post later.
Thanks
OK I've taken the time to get together some pictures and info on the 3400 top end. Before I started this project on my car. I spent nearly eight months researching the various cams, clutches, and other assorted goodies for the 3.4 RWD block. Shown nearly bare here http://img2.putfile.com/thumb/7/20117171533.jpg (http://www.putfile.com/pic.php?img=6058820)
The 3.4 RWD block was the biggest of the 60* V6s but was only 30hp stronger than the 2.8. thats because the iron heads from the Gen1 2.8 managed to make they're way to the 93-95 F-body 3.4.
These heads are shown here
http://img2.putfile.com/thumb/7/20117171482.jpg (http://www.putfile.com/pic.php?img=6058816)
and
http://img2.putfile.com/thumb/7/20117171496.jpg (http://www.putfile.com/pic.php?img=6058815)
The second issue was with the poor intake manifold design. the Runners in the lower intake were too short to account for any kind of intake acceleration.
Runners shown here
http://img2.putfile.com/thumb/7/20117171330.jpg (http://www.putfile.com/pic.php?img=6058814)
Now in my time researching ways to boost the out-put of the 3.4 with help from a member here I found a very detailed thread on a top end project that was not done by anyone but one guy. This out lined the benefits of the newer aluminum 3400 heads that were not only a direct bolt on but increased the power greatly. The 3400 heads had much larger valves a much smaller combustion chamber and much larger intake/exhaust runners.
The heads are shown here
http://img2.putfile.com/thumb/7/20117171583.jpg (http://www.putfile.com/pic.php?img=6058819)
and
http://img2.putfile.com/thumb/7/20117171547.jpg (http://www.putfile.com/pic.php?img=6058818)
You'll notice in the second picture the heads come factory with beehive valve springs which allows for a greater rev-potential, and 1.6:1 rockers. Now to take care of the intake, the 3400 intake manifold has 9in runners that are of a much larger diameter allowing for far better flow and aims the fuel injectors directly at the heads.
Shown here
http://img2.putfile.com/thumb/7/20117171422.jpg (http://www.putfile.com/pic.php?img=6058817)
and
http://img2.putfile.com/thumb/7/20116502743.jpg (http://www.putfile.com/pic.php?img=6058737)
Once all together gains of near 40hp were achieved putting the car at 170RWHP being 200hp at the flywheel. But that was with a stock tune and cam. I've come across a fairly large cam and am waiting on a computer system to get the absolute most out of this block. I'll have more info to post later.
Thanks