429 power?
New User
Joined: Oct 2002
Posts: 5
Likes: 0
From: Metamora USA
429 power?
Could someone please do a desktop dyno for me? It is a 1971 429 thunderjet. It is bored .030 with Speed Pro forged pistons. It has a comp can extreme 4x4 can with .514 in. and .524 ex., Dove C heads with standard valves but better springs. Harland sharp roller rockers, and L&L headers. Thanks
Postmaster
Joined: Aug 2001
Posts: 2,882
Likes: 0
From: Nevada
429 power?
For anything close, you also need to provide carb cfm, type of intake manifold, C/R, cam duration @.050, lobe separation and who ever does it will need to use stock DOVE cfm flow for the heads. I have the head info on a website, at the bottom of this page under 'flow comparison - aluminum and cast iron heads'.
http://www.geocities.com/madodah2002/
http://www.geocities.com/madodah2002/
429 power?
Postmaster
Joined: Aug 2001
Posts: 2,882
Likes: 0
From: Nevada
429 power?
In a 4x4 that cam should be a good application. Any additional duration will raise the power band to where a higher speed stall converter would be required and off-idle torque will be lost. Those exhaust head flow numbers won't handle much over .500 lift.
