Jack, what do you think? 32 valve 351C heads

Peter Aaardema's 4-valve heads have been around since the '80s. They were originally pushrod-activated with linked rockers operating dual intakes & exhausts- not what one would call a high-tech arrangement. Such a setup is immensly easier to build on straight-valve heads such as Chev small blocks & Ford Windsors. Clevelands and big-block Chevys are the only stagger-valve engines, so these heads must be fairly new or are Windsor conversions. I've never seen any dyno trests published for any engine running these heads. I'd be especially interested in the rev-range of the setup, since 4-valve heads typically make most power at higher rpms, and pushrods in the design seem to limit this. Dunno.....

Jack;
New special pushrods are in fact part of the package. If you can check around the website you will see some charts that illustrate massive improvements in horsepower and torque. A cam and carb change seem to be the only things required. Hydraulic cams etc. are doable but mechanical seems to be preferred for higher rpms.

Jack:
What do you think?
New special pushrods are in fact part of the package. If you can check around the website you will see some charts that illustrate massive improvements in horsepower and torque. A cam and carb change seem to be the only things required. Hydraulic cams etc. are doable but mechanical seems to be preferred for higher rpms.[/b][/QUOTE]

Check these flow charts.
http://www.araoengineering.com/4vs2_2.htm




[This message has been edited by phill1 (edited 11-13-2003).]

quote:

---

Originally posted by phill1:
Jack:
What do you think?
New special pushrods are in fact part of the package. If you can check around the website you will see some charts that illustrate massive improvements in horsepower and torque. A cam and carb change seem to be the only things required. Hydraulic cams etc. are doable but mechanical seems to be preferred for higher rpms.

---

Check these flow charts.
http://www.araoengineering.com/4vs2_2.htm

Guys - I am very interested in anybody's experience with these heads. You can respond here or email me at: clewis@dancemusic.net

I am thinking about building an engine: Dart aluminum block, these heads, and a cross ram fuel injection set-up like the one I saw on Asa Jay's Pantera page.

Thanks in advance for your time in responding,

Chris Lewis aka DJEZC


[This message has been edited by phill1 (edited 11-13-2003).][/B][/QUOTE]