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1967 Engine swap (early 289 to late 302)
2 messages, Last post on Nov 02, 2008 at 8:03 PM
You are in the Speed Shop Tuning and Modification Forum.- Your Host is steve_
What is this discussion about? Ford Mustang, Performance Mods, Engine, Transmission
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#1 of 2 1967 Engine swap (early 289 to late 302) by sacxiv
Jul 13, 2007 (3:05 pm)
I have recently installed a re-built 1984 302 “Police package” engine in a '67 coupe. Car originally had a 289/C4. Transmission was not rebuilt as there was no problems. Engine ran smooth on dyno but now, installed in the car, there is a vibration. I have replaced the harmonic (and everything else on the front-end) but the vibration is still there. Any ideas?I have been told that the late model 302 are balance differently than the early model 289. Because of this, I will need to change the “flex plate’. I have no problem doing this but does anyone know a specific type, make, or manufacturer than makes the correct part?
#2 of 2 balance by papasam1
Nov 02, 2008 (8:03 pm)
The early 302 were balanced with a 28 OZ Harmonic balancer and the later models were balanced with a 50 OZ harmonic balancer this will cause the vibration you are having.- All Messages Displayed
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