91 5.0 HO from cougar forged pistons? November 30, 2009, 03:50:19 PM found a couple of 5.0 HO cougars thunderbirds at a junkyard. do these motors have forged pistons? Quote Selected
91 5.0 HO from cougar forged pistons? Reply #1 – November 30, 2009, 04:05:56 PM I believe they do. Anyone feel free to correct me if im wrong. Keep in mind they would be TRW pistons. Kinda heavy actually. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #2 – November 30, 2009, 06:34:13 PM Yep. 5.0 HOs (all Ford/Merc/Linc) through 92 had forged pistons. 93-95 HOs (all cars) had hyper pistons. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #3 – November 30, 2009, 07:07:01 PM cool!now i just need to decide if i want to get that motor or a roller block 351W from a '94 F150. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #4 – November 30, 2009, 07:39:04 PM On a similar subject, are the Explorer GT40 engines forged? Quote Selected
91 5.0 HO from cougar forged pistons? Reply #5 – November 30, 2009, 07:50:39 PM Hyperutectic pistons i believe in the GT40 Exploders. Still a roller block though Quote Selected
91 5.0 HO from cougar forged pistons? Reply #6 – November 30, 2009, 07:58:42 PM explorers didn't get the V8 until '96, so hypers would make sense. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #7 – November 30, 2009, 08:22:10 PM Ford went with hypereutectic pistons with the reasoning that they were better as far as oil control is concerned.....They've also been said to show longer service life. We all know even a cast 5.0 piston has the ability to last a LOOONG time though.They WILL take a decent amount of abuse -- even boost -- contrary to what some people say. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #8 – November 30, 2009, 08:42:31 PM ^+1 Another reason for the Hyper pistons was lower cost and less consumer complaints. The TRW forged slug have some piston slap till they get heat in em. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #9 – November 30, 2009, 09:15:50 PM I know the stock pistons in my 130,000mi SO motor took a 200 shot like a champ repeatedly. Quote Selected
91 5.0 HO from cougar forged pistons? Reply #10 – November 30, 2009, 10:57:57 PM Quote from: jandmmustangs;300707 The TRW forged slug have some piston slap till they get heat in em.+ Juan Quote Selected
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