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new engines for the GMCs [message #316311] Thu, 20 April 2017 13:49 Go to previous message
Mike S   United States
Messages: 82
Registered: February 2017
Location: Vero Beach, FL
Karma:
Member
Some of you may be following this from the Facebook page. I have been looking into the viability of the LS engines for GMC motorhomes. Problem number one was getting the LS engine to hook to our 425 transmissions. The Panrail on the LS interferes with our differential. I solved the connection problem by rotating the transmission up about 25°. That allows clearance around the Panrail and diff. The next problem was the transmission now interferes with the step area. It could be worked around but it illuminates a True Bolt-in situation. I have identified an aftermarket block that would get us 427 in.³ relatively easily. And still fit in the stock location. The target for the horsepower of this engine would be 450 HP and 500 pounds of torque. They can have late-model fuel injection and coil on plug spark system. I'm ready for questions
 
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