4x4 Big Block Conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**stllookn** · 03-13-2011, 11:46 PM

Will the standard 4x4 small block engine cradle work for a big block? Do you just use the big block mounts in the cradle?

**Yukon Jack** · 03-15-2011, 12:44 PM

Simple answer, yes you can use your small block cradle with small block mounts. Long answer, it usually won't fit without some mods as you'll find when you read this thread.

03-13-2011, 11:46 PM	#1
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,463	4x4 Big Block Conversion Will the standard 4x4 small block engine cradle work for a big block? Do you just use the big block mounts in the cradle? __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

03-15-2011, 12:44 PM	#2
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Re: 4x4 Big Block Conversion Simple answer, yes you can use your small block cradle with small block mounts. Long answer, it usually won't fit without some mods as you'll find when you read this thread. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14



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