Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: 1BDBIRD on March 18, 2009, 10:39:29 PM

Title: 460 rockers 1.7 in 302 for more duration???
Post by: 1BDBIRD on March 18, 2009, 10:39:29 PM
Will this work i want to know for my next junkyard build!!!!
Title: 460 rockers 1.7 in 302 for more duration???
Post by: 1BDBIRD on March 18, 2009, 10:44:58 PM
i heard it works????
Title: 460 rockers 1.7 in 302 for more duration???
Post by: Beau on March 19, 2009, 01:53:57 AM
no.
Title: 460 rockers 1.7 in 302 for more duration???
Post by: Haystack on March 19, 2009, 01:59:58 AM
the 3.8's have the same style of rockers as a stock 5.0. I am not sure if they would bolt up with no problems, but I would bet they could.
Title: 460 rockers 1.7 in 302 for more duration???
Post by: V8Demon on March 19, 2009, 02:09:52 AM
OVERALL DURATION will not be affected.

If you were to measure the durtion @ .050" and .200" you would notice a slight increase in duration at those--and all other intervals--where the valve is actually off the seat. 

Increase in overall duration? NO
Increase in potential air intake/exhaust charge within the same given time range?  Yes.
Title: 460 rockers 1.7 in 302 for more duration???
Post by: flipnbird on March 19, 2009, 05:42:02 AM
Big block chevys and the 460 rockers will interchange, and so will the guide plates.
Title: 460 rockers 1.7 in 302 for more duration???
Post by: 1BDBIRD on March 19, 2009, 10:57:34 AM
Just wanted more rocker ratio from 1.6 to 1.73 is the difference i think??? Im slapping a 5.0 ho together with new rings,bearings,ect out of my used parts and gonna throw some nos at it. So kinda piecen stuff together. Gonna port n polish some e-7s today for it.
Ten see how long she can handle and how much??? LOL
Title: 460 rockers 1.7 in 302 for more duration???
Post by: V8Demon on March 19, 2009, 11:10:17 AM
Here's an illustration of what I hopefully put into words before:

(http://i280.photobucket.com/albums/kk191/V8Demon/Car%20Tech/valve_lift-part12A.jpg)
Title: 460 rockers 1.7 in 302 for more duration???
Post by: 1BDBIRD on March 19, 2009, 11:29:11 AM
I have clevland pedestal mount rockers 1.73 they should be same as 460 correct. And overall is this work messing with???