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#1 |
Registered User
Join Date: Jun 2016
Location: Huntington Beach, California
Posts: 22
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Hey guys! My fiancée and I are in the process of building a 66 c10. We picked it up a few years ago and we’re finally starting to get moving along on the project. We pulled the old tired 283 and turbo 350 out and bought a 454 and a 700r4 to replace it. A few weeks back I pulled the front clip and got everything cleaned up. We also purchased a set of big block motor mounts from Classic Performance Products (CPP) that come with little instructions. I know the frame has to be notched for this to fit in the factory mounting locations. I’m just curious if anyone has used them, and if they have any pictures or insight on what to do. Thanks in advance!
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1995 Chevy Crew Cab 3500 Dually 6.5 TD 1964 Chevy Single Cab Long Bed Fleetside Small Block 400 1966 C10 ![]() |
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#2 |
Registered User
Join Date: Jun 2016
Location: Huntington Beach, California
Posts: 22
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Re: 66 C10 Big Block Swap
Here’s a few photos
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1995 Chevy Crew Cab 3500 Dually 6.5 TD 1964 Chevy Single Cab Long Bed Fleetside Small Block 400 1966 C10 ![]() |
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#3 |
Registered User
![]() Join Date: Sep 2006
Location: San Francisco
Posts: 4,780
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Re: 66 C10 Big Block Swap
Well those are new. Back when I was doing mine all I could find were tubular mounts or use the 67 and up BB mounts. Here is my build. http://www.67-72chevytrucks.com/vboa...=259536&page=2 By the looks of those mounts, it seems you don't have to notch the frame at all. You can always call the vendor you bought them from and get more info from them. Another way is to just mock up the engine and see how it fits. I had my engine in and out about 20 times putting mine together.
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"A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536 |
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#4 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: 66 C10 Big Block Swap
The '68+ frames were narrower on the top flange for exhaust manifold clearance for the big blocks. So depending on what you plan on using for exhaust, you may or may not need to trim the top flange in the engine bay area. I did it on my '66 Suburban.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#5 |
Registered User
Join Date: Sep 2008
Location: San Carlos, Ca.
Posts: 3,048
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Re: 66 C10 Big Block Swap
The 396 that was in mine when I got it had manifolds that appeared to "self clearance themselves long before I got the truck. I think it was on the original motor mounts when I got the truck.
Fast forward to when I put the 7.4 in and wanted to run a set of Thorleys that I was given. Had to notch a small half moon for the #4(?) cylinder in the top rail. It can just barely be seen in the photo. This is on the same mounts that came with the truck as well. Only thing I'd do different is maybe move the engine 1" forward. Makes getting the passenger side VC off possible without every possible conjugation of curse words in the English language and even a few that were of unknown origin ![]() Chevy Fleetside might be right in that the new mounts might be raising the engine to where you won't have to clearance anything. FWIW, Im not sure what the 2wd -4wd frame differences in that area are either so YMMV
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Chris '63 k15 long step Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205 ![]() 52" front and 63" rear spring swap D44 / 14bff - disc axles Milemarker 9K and 10.5K hydraulic winches 63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29 |
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