**73 Scamp Mini Pro-Street Engine Swap**

Mad Dart said
Well I have heard that the 904 is not the best candidate to hold big powerbut as you know there are a lot of people that talk but actually have no experience so I guess we can take it as a grain of salt.Lol I wonder what really breaks on the 904? The input shaft? Most of the abuse will be out of the hole on the T Brake I am assuming. Do you also NOS Launch it? All that will come into play.

I am more worried about my Rear end breaking and that is why the 9" is getting built now cause it will replace the 8 3/4 when it does.

As far as my trans goes If it does not hold up, I have a SB 727 in the corner that is already built and ready to go that I can swap in. It has all the good stuff, billet front drum, Reds, Steels, HD bands, Bolt in sprague etc and a T Brake Valve Body with low band apply. I bought that trans from Joe at Tranzact about 2 years ago or so. It is on a stand if need be. Only thing is I would need a Converter and another drive shaft.

So in my case I am going to Spray it until it goes or blows! Lol

I have been told that if the 904 kicks the bucket, it will be in high gear, not on the launch. I have also heard that with higher power they require frequent freshen ups, new clutches, band adjustments, etc.

I do leave off a brake, and yes, I plan to spray right outta the hole (this year I did it at the 60' mark as I was playing with a bad track both times)

I can't decide what to do at this point, so I thought I would ask you your plans. I need to get a nitrous converter as my 8" 5500 stall is too loose for the spray, but I would rather spend the money once- as in I don't want to buy a converter for the 904 and then it craps out hard on me early in the season.

At this point though, I just don't have the cash to swap to a 727...I was hoping for some reassurance from you in my choice! LOL