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Labor Day Putting down your wrenches or time for MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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| | | Forums66 Topics128,005 Posts1,055,266 Members48,418 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Oct 2004 Posts: 26 Junior Member | | Junior Member Joined: Oct 2004 Posts: 26 | I plan on swapping the 6 banger out for a V-8 in my 1966 C20. Is there any tricks to bolting a Small-Block or Big-Block Chevy up to the original 4 speed on a 66 Chevy Pickup? Can it be done or am i going to have troubles?? | | | | | Joined: Jan 2001 Posts: 687 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 687 | If your 6 banger is a 230 or 250 a small or big block v8 will bolt in with virtually no modifications. You'll only need to find the proper engine mounts to attach to the frame brackets. The frame brackets will stay in the same position they are in with the small 6.
If you have the big 6 (i.e. 292) then you'll have to change the passenger side frame bracket mount. Find one from any 63-72 truck with either a 230,250 or small block v8.
Even with the big block v8 you'll find that you'll still have plenty of room to work under the hood.
-ftyler | | | | | Joined: Oct 2004 Posts: 26 Junior Member | | Junior Member Joined: Oct 2004 Posts: 26 | Thank you ftyler! Helps alot. Might have to call on your help again sometime. Thanks. | | | | | Joined: Jan 2001 Posts: 687 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 687 | Sure. Anytime.
I have a 66 c10 that I swapped out a 230 for a 292. From the cab forward is the same as your c20.
-ftyler | | |
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