FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: Jb427 on January 22, 2022, 08:32:15 AM
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What is a good flexplate for a c6 fe 600 to 700 hp rating?
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This is the one in the red truck:
https://www.summitracing.com/parts/ati-915702
It's taken quite a bit of hard use. Torque converter flashes at 5600rpm.
https://www.youtube.com/watch?v=Kt7xTs2soBk
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Not sure wheat ET level that NHRA mandates a SFI flexplate, as I haven`t raced an automatic transmission car in well over 20 years now, but back when I ran a C6 in my Fairmont, I used a factory 428 flexplate , and never had any issues with it. That was over 10 years of WOT transbrake launches at 5200 RPM, with low 1.4-high 1.3 60 foot times, running mid 10s in the 1/4 mile. And that flexplate was just a stock unit from one of my 428 cores, so it was likely over 30 years old at the time.
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FTI told me that a stock Ford FP was good to go for my 550 hp 7k 390..
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I'm pretty happy with my Reactor flex plate. HD aluminum, nice SFI piece. Jim
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This is the one in the red truck:
https://www.summitracing.com/parts/ati-915702
It's taken quite a bit of hard use. Torque converter flashes at 5600rpm.
https://www.youtube.com/watch?v=Kt7xTs2soBk
Dose that Ati one you listed need the adapter and ati bolts?
I'm pretty happy with my Reactor flex plate. HD aluminum, nice SFI piece. Jim
Do they do a steal one? they look nice i don't really need a light weight one for what i am doing they have no prices on there web site how much did that cost you Jim?
Cheers.
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This is the one in the red truck:
https://www.summitracing.com/parts/ati-915702
It's taken quite a bit of hard use. Torque converter flashes at 5600rpm.
https://www.youtube.com/watch?v=Kt7xTs2soBk
Dose that Ati one you listed need the adapter and ati bolts?
Cheers.
Yes sir forgot the adaptor flange:
https://www.summitracing.com/parts/ati-915611
I ended up using low profile ARP bolts due to torque converter interference.
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Look into ATIs flex plate . It is a tough dude expensive but well worth it .They have one for 428s as well (external balance )Doug
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>Not sure wheat ET level that NHRA mandates a SFI flexplate,
I only buy SFI rated flex plates, even for a 300 HP 302. They are not that expensive, IMHO. In the race cars of course, nothing less.
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The Reactor flex plate set me back about $450. I bought mine through Blair. Jim
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ATI, Performance Automatic, or JW.
I have a JW flexplate for the dyno. I've had it on 1200 hp engines.
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Thanks everyone for the help
I also need a separator plate and dust cover for c6 to fe dose anyone remake these?
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Thanks everyone for the help
I also need a separator plate and dust cover for c6 to fe dose anyone remake these?
The C6 inspection cover/dust cover is reproduced, should be able to find it at any of the reproduction parts companies. They turn up used occasionally.
I’m not aware of a reproduction of the separator plate/spacer plate, but they are generally easy to find. You might want to run a wanted ad on the page here, or let people know your general location, they could be one local to you. I’ll send you a message.