Originally Posted by
27mm
Did the IAF re-engine their F4s with GE donks?
No, they already had GE engines. You're probably thinking of the Israeli 'Super Phantom' proposal. One aircraft flew with a pair of P&W PW1120s, which were developed from the P&W F100. Although test flights showed significant improvements in performance, in the end, the upgrade (which became the 'Kurnass 2000') was limited to avionics and structural upgrades and the PW1120 died along with the cancellation of the IAI Lavi project.
Interestingly, BMAC, also working with P&W PW1120s, did some development work on a 'Super Phantom' for the USAF, one of the 'novel' features was a palletized conformal belly fuel tank with hard points and integrated chaff/flare dispensers!
-RP