heads for flat top pistons Reply #30 – July 10, 2014, 07:21:30 PM Quote from: thunderjet302;435757Going fast costs $$$. It's not just the heads but the other parts as well. Switching from 19lb to 24lb injectors is going to require either MAF or a Computer tune. SD will only run with 19lb injectors (stock HO computer) Yes your Thunderbird computer won't work. You're going to need a 5.0 Mustang computer. More $$$.Ok. That's good to know. I have 19# to start with and a Mustang computer already. Then I'll change to MAF. I spoke with one of the tech people from a store that sell the TW heads and he said that with the HO cam, the stock HO push rods are the correct length and will work fine. I just happen to have a set of those so I'll swap those in when I slap the heads on. Quote Selected
heads for flat top pistons Reply #31 – July 10, 2014, 08:03:25 PM Grab a pushrod checker they are cheap and work rather well. have a great evening guys. Quote Selected
heads for flat top pistons Reply #32 – July 10, 2014, 11:24:28 PM Thanks everyone for the help. Looking forward to busting through the 0-60 8 second time. Quote Selected
heads for flat top pistons Reply #33 – July 11, 2014, 10:47:45 AM Quote from: marianadeeps;435765Ok. That's good to know. I have 19# to start with and a Mustang computer already. Then I'll change to MAF. I spoke with one of the tech people from a store that sell the TW heads and he said that with the HO cam, the stock HO push rods are the correct length and will work fine. I just happen to have a set of those so I'll swap those in when I slap the heads on.I would check the pushrod length. From what I have heard you'll need longer pushrods no matter what cam you run. Plus you can't re-use the stock pushrods with stud mount rockers. They have guide plates which will wear holes in the stock pushrods. You'll need hardened pushrods for the Twisted Wedge heads. No matter what you're buying pushrods . Quote Selected
heads for flat top pistons Reply #34 – July 11, 2014, 01:40:50 PM I just remembered I had this. Owner claims 330 horse at the wheels.video:https://www.youtube.com/watch?v=ZcjpXbMiCtg&list=PLkeZTGsldc5f85K_SQbu2rB-KYF6ZW9HFcar has: -Trick flow TW170 heads with high lift valve option-ARP 9/16 rocker studs-Comp pro magnum roller rockers-Lunati hardened pushrods-Ed Curtis custom billet cam-Edelbrock RPM II manifold-Cobra injectors, mallory fuel rails and pressure regulator-PP 70mm Throttle body and EGR spacer-C&L Intake tube-Thunderbird S/C MAF sensor-K&N filter-X3Z ECU with SCT chip and tune-BBK 1 5/8 chrome long tubes into -BBK X pipe-Custom magnaflow lers-Taylor racing plug wires-JEGS SFI harmonic balancer-Ford high-rpm water pump-Underdrive pulleys-JEGS aluminum radiator-Walbro 255 fuel pump Quote Selected
heads for flat top pistons Reply #35 – July 11, 2014, 07:46:41 PM Quote from: thunderjet302;435805I would check the pushrod length. From what I have heard you'll need longer pushrods no matter what cam you run. Plus you can't re-use the stock pushrods with stud mount rockers. They have guide plates which will wear holes in the stock pushrods. You'll need hardened pushrods for the Twisted Wedge heads. No matter what you're buying pushrods .Strange. LateModelRestoration said the old HO rods would work. Summit Racing told me to buy these: http://www.summitracing.com/parts/cca-7826-16/overview/ 6.248. they said they looked it up in the Comp Cam book and it said 6.250. These are the universal push rods. Quote Selected
heads for flat top pistons Reply #36 – July 11, 2014, 07:55:45 PM Trick Flow said that 6.750 push rods were to be used with the Twisted Wedge 170 heads and that's what they send in the top end kits for the 5.0. Quote Selected
heads for flat top pistons Reply #37 – July 11, 2014, 08:48:28 PM Bottom line is they have to be checked. Never assume a part fits . And if the head is a stud unit you need hardened ones or as posted above they will wear through. But most push rods are hardened but you never assume that. I can not stress the need to check the length you need. Dynamic Stacking always throws a wrench in things like this. That is what blueprinting is all about. Have a great evening guys. Quote Selected
heads for flat top pistons Reply #38 – July 12, 2014, 12:33:06 PM QuoteI just remembered I had this. Owner claims 330 horse at the wheels.video:https://www.youtube.com/watch?v=Zcjp...u2rB-KYF6ZW9HFcar has: -Trick flow TW170 heads with high lift valve option-ARP 9/16 rocker studs-Comp pro magnum roller rockers-Lunati hardened pushrods-Ed Curtis custom billet cam-Edelbrock RPM II manifold-Cobra injectors, mallory fuel rails and pressure regulator-PP 70mm Throttle body and EGR spacer-C&L Intake tube-Thunderbird S/C MAF sensor-K&N filter-X3Z ECU with SCT chip and tune-BBK 1 5/8 chrome long tubes into -BBK X pipe-Custom magnaflow lers-Taylor racing plug wires-JEGS SFI harmonic balancer-Ford high-rpm water pump-Underdrive pulleys-JEGS aluminum radiator-Walbro 255 fuel pump I had that same "high lift valve" option with my heads. It's basically Trick Flow's upgrade spring package. When Ed Curtis spec'd my cam based on what I wanted, I was told to ditch that setup or revise what I wanted.... There is no way that the TFS setup would have handled the cam. My guess is valve float would have snuck in around 5500 RPM. Maybe sooner. Quote Selected
heads for flat top pistons Reply #39 – July 12, 2014, 09:53:41 PM Quote from: kylesburrell;435812I just remembered I had this. Owner claims 330 horse at the wheels.video:https://www.youtube.com/watch?v=ZcjpXbMiCtg&list=PLkeZTGsldc5f85K_SQbu2rB-KYF6ZW9HFcar has: -Trick flow TW170 heads with high lift valve option-ARP 9/16 rocker studs-Comp pro magnum roller rockers-Lunati hardened pushrods-Ed Curtis custom billet cam-Edelbrock RPM II manifold-Cobra injectors, mallory fuel rails and pressure regulator-PP 70mm Throttle body and EGR spacer-C&L Intake tube-Thunderbird S/C MAF sensor-K&N filter-X3Z ECU with SCT chip and tune-BBK 1 5/8 chrome long tubes into -BBK X pipe-Custom magnaflow lers-Taylor racing plug wires-JEGS SFI harmonic balancer-Ford high-rpm water pump-Underdrive pulleys-JEGS aluminum radiator-Walbro 255 fuel pumpMy soon to be brother in law has an unused, not running, 89 RX7 sitting at his house. This. This is an epic idea..... Quote Selected
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