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I was reading another post about 904 transmissions and was curious how much power a 904 will take with basic mods such as good clutches , sprag, bands. No exotic mods just the basics.



I think you're good to the 1.45 60ft range. I've always run an A&A input shaft though. I have broke every piece other than that, but that was after it got in the mid to low 1.30 range at 3200#.
It has been together for over 20 passes now,although all over 1.38 60fts, trying to get the 275 radial working.Should be good now though..

69 340 swinger streetcar 8.13 1/8th w/1.90 60ft w/ 3.55s 69 422W9 Dart stock suspension,5.27 on 275/60s,single bar plate