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#1 |
Senior Member
![]() Join Date: Mar 2019
Location: Somonauk IL
Posts: 324
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67 Engine Swap i6/283 help
Need some advise on this engine swap.
Truck is a 67 C20. Originally truck had a V8 but at some point a I-6 was swapped. Current set up is SM465 behind a I-6. (The engine needs to be rebuild but does turn over.) I have a entire 283 / SM465 set up that i want to swap in. (the 283 is ready to be fired up so no extra work there.) Using a harbor freight 2 ton cherry picker, and a rotary lift, is it possible to remove the entire engine/trans with only removing the hood and taking off the tires and lowering the truck? Front clip need to be taken out? has anyone done a fully assembled SBC/SM465 swap? I would like to use the current trans that is in the truck but i feel it would be more work to just swap the engines. any advise would be greatly appreciated. Thanks Here are a few pics.
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#2 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,263
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Re: 67 Engine Swap i6/283 help
Well, there are 2 ways.
You could pull only the hood and maybe radiator, and change out the engine disconnected from the tranny -- re-attaching the fresh engine to the old trans on the frame. Or then fishing out [or dropping under frame] the old trans. But making connections on-frame. Or you could pull the whole doghouse -- hood, radiator wall, radiator lights, wires and grille, [plus anything else] -- and swing in the connnected engine/transmission. I've even pulled one fender and skirt, too. Neither way is much easier than the other. Is the ''new'' SM465 better than the old one? Is the old L6 a 250?
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Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 02-02-2021 at 11:48 PM. |
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#3 | |
Senior Member
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Location: Somonauk IL
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Quote:
The i6 is a 250. Posted via Mobile Device |
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#4 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,263
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Re: 67 Engine Swap i6/283 help
So better to change out the tranny too. Does your cab have a removeable transmission hump? If not, then it's a lot harder to do them seperately.
How many guys are helping you?
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#5 |
Senior Member
![]() Join Date: Mar 2015
Location: washington
Posts: 2,240
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Re: 67 Engine Swap i6/283 help
When everything is rusted out and junked the Old 4speed with granny transmission will still be good. Run either one, not likely have any issues.
I don't know how you would get the transmission out or in with the integral shifter installed. IMHO - Much easier, and safer to just install the motor only. It's a pain either way. And that's a lot of weight on a China lift. |
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#6 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,263
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Re: 67 Engine Swap i6/283 help
The shift lever has to come off, obviously.
The brass synchros wear out on the SM465, making shifts 2-3-4 harder. Whenever overhauling a 465 they should be replaced. Granted, it's one of the most durable Xmsns in the world.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#7 | |
Senior Member
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Location: Somonauk IL
Posts: 324
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Quote:
I agree that is a lot of weight in China steel. Especially at that height to clear the grill. Posted via Mobile Device |
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#8 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: 67 Engine Swap i6/283 help
What are your plans for the bell housing cross member mounts ? the I6 cross member mount sits 3 inches back then the V8 cross member does, Even if you use it and mount the engine in the back holes that would place the trans stick shift 3 inches back and the distributor up close to the fire wall . What ever way you decide to go you still have to deal with clutch linkage / drive shaft / etc/etc Lots more work / parts involved than just pulling the 6 and dumping in the V8 ... I would be checking to see what bell housing mount is in the truck now , That's going to determine where everything else lines up .
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop Last edited by Grumpy old man; 02-03-2021 at 08:32 AM. |
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#9 | |
Senior Member
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Location: Somonauk IL
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Quote:
The truck originally had a v8 in it. It’s got the oil pressure going into the firewall and a larger radiator. Posted via Mobile Device |
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#10 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
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Re: 67 Engine Swap i6/283 help
Here are pics of the V8 cross member on the left and 6 on the right . The V8 fits further forward in the frame to locate the V8 engine . I changed mine from the 6 to V8 cross member to put the V8 in the stock position and use the stock bell housing and stock V8 clutch linkage and engine mounts Does your V8 have a pivot ball already mounted for the clutch linkage ? .
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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#11 |
Registered User
Join Date: Jan 2017
Location: Larkspur, Colorado
Posts: 916
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Re: 67 Engine Swap i6/283 help
Are you sure the transmission in the truck is a 465 4 speed? The OEM 4 speed for a '67 would be a 420 4 speed. (reverse far left and down toward the seat)
Might have some driveshaft issues if the transmissions are different. Steve weim55 Colorado |
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#12 | |
Senior Member
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Location: Somonauk IL
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Quote:
This changes things ... Posted via Mobile Device |
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#13 | |
Senior Member
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Location: Somonauk IL
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Quote:
Posted via Mobile Device |
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#14 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: 67 Engine Swap i6/283 help
The 2 nd pic down the cross member still has a rivet to the frame , The easy way to tell witch x member it is , Does your vin start with a CE....... or CS........ I noticed a few other trucks in the background of those pictures ? I'm thinking it was originally a 6 truck .
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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#15 |
Senior Member
![]() Join Date: Mar 2019
Location: Somonauk IL
Posts: 324
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Re: 67 Engine Swap i6/283 help
CE. V8. Yes sir got two other 67’s one just a farm truck plan on keeping it that way. The other is a original swb going to fresh that up do driver quality.
I was unable to locate a number on the bell housing. Tons of road grime. Where would it be located. Posted via Mobile Device |
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