converting from sm465 to trubo 400 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

boonedogs72 · 02-01-2006, 03:24 PM

I have a 72 gmc that im putting a turbo 400 in. It has a sm 465 in it right now. I bought all the adapters for the transfer case and input shaft and so on. What else do i have to do to the trans mount and transer case mounting?

thanks
daniel jones

orange72blazer · 02-01-2006, 05:45 PM

If its the same as the turbo 350 everything should just line up using the same brackets and holes.

boonedogs72 · 02-01-2006, 11:30 PM

Quote:

Originally Posted by orange72blazer

If its the same as the turbo 350 everything should just line up using the same brackets and holes.

i think that the turbo 400 is a little longer. Can you just slide the crossmember back?

**kwmech** · 02-08-2006, 01:21 AM

Quote:

Originally Posted by boonedogs72

i think that the turbo 400 is a little longer. Can you just slide the crossmember back?

Yes you can, but may have to drill, unless you get lucky and some of the frame holes line up.

boonedogs72 · 02-08-2006, 10:08 PM

Quote:

Originally Posted by kwmech

Yes you can, but may have to drill, unless you get lucky and some of the frame holes line up.

thanks took care of it last weekend just slide it back and welded it up. Hope its were its supposed to be. Im putting a 475 hp sb in it with a turbo 400. should go pretty well it made over 500 ftpds of torque to.

OLDCHEV4X4 · 02-09-2006, 04:00 PM

Don't weld it to the frame! What if you have to take it back out?

boonedogs72 · 02-09-2006, 11:40 PM

Quote:

Originally Posted by OLDCHEV4X4

Don't weld it to the frame! What if you have to take it back out?

it should'nt have to be moved hopefully if it does i guess ill have to cut it out

thanks

02-01-2006, 03:24 PM	#1
boonedogs72 Registered User Join Date: Apr 2005 Location: redding ca Posts: 1,438	converting from sm465 to trubo 400 I have a 72 gmc that im putting a turbo 400 in. It has a sm 465 in it right now. I bought all the adapters for the transfer case and input shaft and so on. What else do i have to do to the trans mount and transer case mounting? thanks daniel jones

02-01-2006, 05:45 PM	#2
orange72blazer Registered User Join Date: Dec 2003 Location: West Michigan Posts: 447	Re: converting from sm465 to trubo 400 If its the same as the turbo 350 everything should just line up using the same brackets and holes. __________________ 1972 Chevy Blazer 1997 GMC Sierra 2009 Chevy Tahoe

02-09-2006, 04:00 PM	#6
OLDCHEV4X4 Registered User Join Date: Apr 2000 Location: Chester County PA, USA Posts: 1,228	Re: converting from sm465 to trubo 400 Don't weld it to the frame! What if you have to take it back out? __________________ 72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania



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