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Unread 01-18-2010, 10:41 AM
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Skools Out Skools Out is offline
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Join Date: Jul 2007
Location: Graham / Emerald Isle, NC
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Quote:
Originally Posted by RidgeRunner View Post
I think the tranny was the 4L80E like the tranny behind the 6.0 and big block gas engines, they detuned the engine to help the tranny survive. It was rumored the Allison would not fit in the vans. Unless Ferm gets hold of it :)....

They didn't need to detune the motor for that trans, the 80 is tough as cut nails. according to the specs on the L80's they will hold up to 1000 hp and 1500 ft pd of torque. i have a tahoe with a diesel and the L80 with well over 200k miles no issues and i give mine hell too. had a torque converter replaced at 210k miles due to a noise.
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1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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