Has anyone ever seen someone blow up a front drum WITH an LBA valve body, using manual low?

Mike is the best track photographer. We are lucky to have him!

I have a 904 in my '65 Dart. I was going to ask if anyone has ever heard of a 904 blowing up?

It's kind of funny a year ago I posted the question about using a turbo 400 behind my big block and was told to stick with the 727 even by Monty.

What you got was an opinion and what works for others,Some don't mind doing more work and have the resources.

As J_Body said, the front drum is much smaller. When I was spraying my junk I asked my trans guy if I should put a blanket on it and was told no.

I talked to Rick Allison yrs ago & told me he never heard of a 904 drum explosion. If u use the proper parts in a race 727 everything will be fine. A shield is good insurance coz anything could happen.

My brother is running a push button 727 with all stock parts what all parts should he be looking to upgrade car runs mid to low 11s with a turbo action valve body

Well if anything good comes out of this it will be some upgraded transmission parts and hopefully some shields.

Bill

That is Any 727 users worst nightmare! I went through my 727 last year, didn’t have the funds for an aftermarket drum, but I do run an LBA valvebody, a bolt in sprag, and a blanket just in case. There’s no way to make this hobby completely danger-proof though. As soon as you have your explosion proof transmission figured out, there’s a litany of other perils waiting for you. At some point, you do your best and get on with it.

How fast you are really has little bearing on whether you need "good" parts.

A stone stock /6 has the capability of exploding a 727 drum if the sprag fails. It's strictly a product of engine RPM X low gear ratio. If the tach can hit 5000 in neutral you have the potential for disaster.

Kevin

True. But when we ran one, I still didn't want to break it due to stupid. It was in second when I came out the front of the lanes.

Not just a bolt-in sprag but a Super/Ultimate sprag. The unit I mentioned had a bolt-in and it failed.

GM Trannies explode too IF they are not built right or are abused. Any trans can be a time bomb if abused with the wrong parts.

Exactly. Standard bolt-in sprags are really no better than stock. Meant as a case saver type part.

727's Suck! my buddy just put a glide behind his 440 and that just blew.

So what next? G Force but 4 speed's are inconsistent!

The low band apply valve body alone will prevent this problem. I got my B&M LBA pushbotton VB in 72 and the 66 and later version in 74, I'd never part with them.

Th400 main problem is tossing into nuetral across the stripe. Unless you have a valve body deigned to do it. 123n. I currently run one. Easy to build. BOP versions are cheap and plentiful. Personally I have always hated the 2-3 shift on 727's and tweaking the band.

Asking this question again for clarification. If one does not have an aftermarket drum and LBA, will launching car in 2nd avoid (for the most part) this issue?

A lot of guys do most of the damage on improper tire heating