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extd56 · 02-07-2016, 10:58 PM

I believe the 400 was only used with the big block and maybe 3/4 tons too but since all Blazers were 1/2 tons and no big block probably no 400's.

02-07-2016, 10:58 PM	#4
extd56 Senior Member Join Date: Nov 2004 Location: Vacaville, CA Posts: 2,272	Re: Transmission options 69-72 Blazers I believe the 400 was only used with the big block and maybe 3/4 tons too but since all Blazers were 1/2 tons and no big block probably no 400's.