Th400+ Np205 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

green724x4 · 02-01-2008, 12:14 AM

I am looking for a Adapter selve to take a large out put shaft from a 400 tubo hydromatic and link it to the Np 205 on my 72 chevy.
How much longer is the TH400 than the Th 350. I think its only 2 inches longer but I could be wrong. What else is nessecary to do the swap. I will be pushing the motor mounts forward to get clearance for my BBC.
Anyone try swaping a TH400 with a small block.
Am I in for a surprise?
Thanks

02-01-2008, 12:14 AM	#1
green724x4 Registered User Join Date: Feb 2007 Location: MI Posts: 214	Th400+ Np205 I am looking for a Adapter selve to take a large out put shaft from a 400 tubo hydromatic and link it to the Np 205 on my 72 chevy. How much longer is the TH400 than the Th 350. I think its only 2 inches longer but I could be wrong. What else is nessecary to do the swap. I will be pushing the motor mounts forward to get clearance for my BBC. Anyone try swaping a TH400 with a small block. Am I in for a surprise? Thanks



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