Tractor Oem
Tractor Oem
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Would a 454 actually tear up a 4L60E transmission?
My transmission is fairly fresh, about 8000 miles with a hardened shaft and superior friction discs to OEM, a huge external tranny cooler, (like20,000GVWR) and a couple other mods I'd have to contact the shop about I don't remember them off the top of my head but I know more had been done to it. I wouldn't think the extra torque would be too harmful in such a light weight, comparatively, I pretty frequently haul cars, pickups, SUV's, small tractors and scrap iron on my 18' trailer rated for 7900lbs GVWR so I wouldn't think it should be too much, although I have smoked 10 700R4's
This is in a 1994 fullsize Blazer 4x4
The 4L60-E will hold the torque if you modified it a bit. 4L60Es don't need much work done but if its a pre 1996 trans especially from the Trans AM FireBird V8 5.7L it will have a factory shift kit installed that will lock up the torque converter 1:1 ratio giving you a very hard shifts. This is from the factory !
With a 454CID you will need a slightly bigger trans cooler mounted to the best possible air flow, & then use a better friction modifier if needed in the trans fluid. this will aid in reducing clutch wear and oil sheering that creates heat in the trans.
The Down side is that 4L60E is not the better transmission a TH400 will be better.
>> no electronic controlled solenoids. <<
The 4L80E is used in GM trucks heavy duty applications. This will be a better choice. Now if money is not a problem go to a GM- recycle Salvage yard and find an Allison Transmission. Put it behind that 454 and you will blow the engine before you'll hurt that tranny.










