427 in a 67-72

[1971 cheburban]

Has anyone ever put a 427 in one of these trucks? I would assume you would need the big block mounts and the big block bellhousing, and the v-8 crossmember. And also the 3/4 ton front coils for weight of the 427.(685 lbs dry weight)also does anyone know if there is a bellhousing that accepts the 6 speed ROD to a big block? What rearend setup would be better also leafs, freshly redone coil/trailing arms or a four link? Dana 60, 12 bolt or what? I was thinking of making a patina truck. Like white with fake rust and maybe a 3/4 ton even. And have an old apple orchard logo on it and have apple crates for seats, just the old orchard truck that will lay about half a mile of rubber and still be nice to drive maybe lowered an inch or two also. What do you guys think?

[bigrigpardo]

sweet. they made half ton big block trucks. and all the cross members were the same just the perches were different and they bolt on.

[special-K]

427 is physically the same engine as any 396-454 (externally),so yeah it will go right into anywhere a BBC that would have come in these trucks would go

[Tx Firefighter]

Bell housing is non issue. That's a Ford or Dodge problem. The same bell housing fits inline sixes, small blocks, and big blocks on these trucks.

[MARKDTN]

Assuming you are talking about a car 427. If you are talking tall-deck big truck 427 it will fit, but you need all the pulleys and brackets and your intake choices are much more limited.

[1971 cheburban]

Oh no it would be a car engine, unless I could find a tall deck , a tall deck just a bare block then build it the way I want, any kits to build a a 427 crank rods and pistons and everything or do I have to find everything by it's self? Should I stroke it to a 496 or what. Will the 67-72 motor stands fit the tall deck, and tx firefighter- the bellhousing is all the same? I thought small block-I6 were the same and big block was different. What factory transmission would hold up behind it, I was thinking richmond ROD but I think I would want a muncie would it hold?

[Tx Firefighter]

Nope, same bell housing bolts up to inline six 230/250/292 engines, small block 262, 265, 267, 302, 305, 307, 327, 350, and 400. Also same as 366, 396, 402, 427, and 454 big blocks. Even some of the new LS and 8.1 stuff is included, but I know nothing about them personally.

That's why I build Chevrolets. I helped my father in law build a Ford one time. We payed hell swapping engines with all the differences. And I helped a guy swap a slant six Dodge to a 318 once. Same deal, pure misery. I'll stick to my Chevys where even a blind squirrel has good luck finding his nuts.

[MARKDTN]

Originally Posted by 1971 cheburban

Oh no it would be a car engine, unless I could find a tall deck , a tall deck just a bare block then build it the way I want, any kits to build a a 427 crank rods and pistons and everything or do I have to find everything by it's self? Should I stroke it to a 496 or what. Will the 67-72 motor stands fit the tall deck, and tx firefighter- the bellhousing is all the same? I thought small block-I6 were the same and big block was different. What factory transmission would hold up behind it, I was thinking richmond ROD but I think I would want a muncie would it hold?

Mounts are the same. Bellhousing same as noted above. A tall deck is just a taller block with a wider intake. You may have exhaust manifold issues with a tall deck. Better to stay with a "car" engine. If you don't already have one, are you stuck on a 427? Why not a 454 or 502? Or an LSx? If I didn't already have the engine no way in this day and time I build a big-block for anything but an original vehicle. You can get as much or more power from an LS with less hassle and a lot better mileage and driveability.

[special-K]

That LS/LX stuff is all fine and dandy if you really need all that and don't mind ruining the beautiful simplicity,timeless design,and overall old vehicle vibe that has become a thing of the past in the vehicles those motors came out of,and these trucks have all over on them. But,for some of us there's nothing cooler than a good old L6,SBC,or BBC. It's just right. I've been in these trucks so long I'm sure I'm clinging to my past. But,I recall watching the new herd come to these trucks saying what they love is they are so simple and easy to work on. Now the herd is begging for complications by putting computers in these wonderful machines. I also remember watching them rip the L6/3spds out and junking them to swap in a V8. Now I watch people scrounge for these parts that were tossed to swap them back. Hey,I think I might consider the LS/LX route if my 67-72 could be a daily driver,rather than have the vehicle they came in (for fuel economy). Otherwise,I like the power these trucks came with and when I want more I'll build it myself. That's how it's always been and what I grew up with. Whatever you all do,don't go scrappin' all our old motors just because you wanted a modern junkyard motor. The old motors are great,just like the trucks they came in. Always will be. Time has proven that over and over.

[jeh]

Here's one!!!

[undertaker72]

Originally Posted by Tx Firefighter

Nope, same bell housing bolts up to inline six 230/250/292 engines, small block 262, 265, 267, 302, 305, 307, 327, 350, and 400. Also same as 366, 396, 402, 427, and 454 big blocks. Even some of the new LS and 8.1 stuff is included, but I know nothing about them personally.

That's why I build Chevrolets. I helped my father in law build a Ford one time. We payed hell swapping engines with all the differences. And I helped a guy swap a slant six Dodge to a 318 once. Same deal, pure misery. I'll stick to my Chevys where even a blind squirrel has good luck finding his nuts.

you forgot the elephant toes 348/409 lol

[Steeveedee]

Originally Posted by jeh

Here's one!!!

That sure is purty! I've got to get time to clean mine up one of these days (bone stock 400 with standard painted sheet metal valve covers, though).

[special-K]

Originally Posted by Steeveedee

That sure is purty! I've got to get time to clean mine up one of these days (bone stock 400 with standard painted sheet metal valve covers, though).

Though? I rip aftermarket crap off to put the painted OEM valve covers on. I had a pro-street '70 Stepside with an LS-6 454 that I dressed-up (down?) to look like a stock 402. Had steelies with stock hubcaps,too! Many thought I was another fool who had built an all show & no go truck till I turned the key. Then they took a step back.

I do agree that 427 is real sharp looking (in the GM Performance dress). And I bet it delivers performance that owns up to it's good looks. I don't hate aftermarket dress-up stuff,I also do that sometimes. Just sayin, nothing wrong with a stock look (and fooling people with it is way cool). I know one thing,IMO dressing up a stock motor is pure lame. No offense intended,that's just my opinion. If I can only have one I'll take "go" over "show"

[Heavymetl]

Originally Posted by special-K

If I can only have one I'll take "go" over "show"

So...LS?

I keed, I keed! But I freely admit as a relative youngster the LS is my engine of choice. It's nice to use the laptop to data-log, make changes, and see results as opposed to fiddling with a metered fuel leak (carb).

But going with the Richmond 6 speed over a T56? When it comes to cost, I have no idea. But I do know any variant of the T56 aside from the 1993 year will live all day behind your 427. The 1994-1997 its the LT1 style that would best work with your big block, but of course will require a bellhousing a most likely a hydraulic throwout assembly.

T56 Gear Ratios
1 - 2.66
2- 1.78
3 - 1.30
4 - 1.00
5 - .74
6 - .50

The ROD has many different options, but I didn't see the direct 1:1 4th offered. Perhaps I overlooked it. My cousin has a 70 C10 with a 355/T56 combo and the trans has the "mid-shift" conversion. It shifts flawlessly and I see no downsides to it other than price.

Good luck with the build!

[7dee2]

Originally Posted by special-K

That LS/LX stuff is all fine and dandy if you really need all that and don't mind ruining the beautiful simplicity,timeless design,and overall old vehicle vibe that has become a thing of the past in the vehicles those motors came out of,and these trucks have all over on them. But,for some of us there's nothing cooler than a good old L6,SBC,or BBC. It's just right. I've been in these trucks so long I'm sure I'm clinging to my past. But,I recall watching the new herd come to these trucks saying what they love is they are so simple and easy to work on. Now the herd is begging for complications by putting computers in these wonderful machines. I also remember watching them rip the L6/3spds out and junking them to swap in a V8. Now I watch people scrounge for these parts that were tossed to swap them back. Hey,I think I might consider the LS/LX route if my 67-72 could be a daily driver,rather than have the vehicle they came in (for fuel economy). Otherwise,I like the power these trucks came with and when I want more I'll build it myself. That's how it's always been and what I grew up with. Whatever you all do,don't go scrappin' all our old motors just because you wanted a modern junkyard motor. The old motors are great,just like the trucks they came in. Always will be. Time has proven that over and over.

Originally Posted by special-K

Though? I rip aftermarket crap off to put the painted OEM valve covers on. I had a pro-street '70 Stepside with an LS-6 454 that I dressed-up (down?) to look like a stock 402. Had steelies with stock hubcaps,too! Many thought I was another fool who had built an all show & no go truck till I turned the key. Then they took a step back.

I do agree that 427 is real sharp looking (in the GM Performance dress). And I bet it delivers performance that owns up to it's good looks. I don't hate aftermarket dress-up stuff,I also do that sometimes. Just sayin, nothing wrong with a stock look (and fooling people with it is way cool). I know one thing,IMO dressing up a stock motor is pure lame. No offense intended,that's just my opinion. If I can only have one I'll take "go" over "show"

You know it K! Good advise and I love my big blocks, always have. The newer engines and fuel injection are great but something about an old truck just the way GM made it is very cool to me. To each his own but my old stuff remains old school.

BB swap in these trucks is pretty easy Tx Firefighter is right about how nice the interchangeability is for GM products. My 2 cents is make sure you set the BB forward (using factory type perches) to avoid clearance problems behind. Lots of transmission options just make sure it can handle the torque.

[jeh]

Originally Posted by special-K

Though? I rip aftermarket crap off to put the painted OEM valve covers on. I had a pro-street '70 Stepside with an LS-6 454 that I dressed-up (down?) to look like a stock 402. Had steelies with stock hubcaps,too! Many thought I was another fool who had built an all show & no go truck till I turned the key. Then they took a step back.

I do agree that 427 is real sharp looking (in the GM Performance dress). And I bet it delivers performance that owns up to it's good looks. I don't hate aftermarket dress-up stuff,I also do that sometimes. Just sayin, nothing wrong with a stock look (and fooling people with it is way cool). I know one thing,IMO dressing up a stock motor is pure lame. No offense intended,that's just my opinion. If I can only have one I'll take "go" over "show"

Just for the record, my motor is built, not bought... The only thing that is GM Performance is the front runner system. No offense taken here, just saying it's not a store bought crate motor.

[litew8]

nice

[special-K]

JEH,I just assumed it was a newer GM crate 427 because it looks like one to me...or as I recall them looking like (valve covers?). Built your way is way coolest,but crates are cool as well. I know I like it and I bet she pulls as good as she looks.

[68Gold/white]

You won't ever find a LS under the hood of my stuff.
I'm glad for the LS mania thing!!!, it's like the small block thing tht started in 1955. Ya don't see ANYONE putting a piece of crap triton V8 in ANYTHING!!!

I'm working towards my 68, it came w/ a 396, still have all parts and pieces. The frame brackets and mounts are different for a big block, but I believe the small block stuff will bolt up and work fine, on a big block, as long as you keep the parts together...

The only thing I'd be worried about is the drive shaft carrier bearing. My 68 had a much better designed bearing and housing, not that 2 bolt mickey mouse deal that most 67-72's have.
I plan to install something even, better, using a 73-up carrier type bearing.

As mentioned by others, brackets and pulleys for abig block will be needed, The car stuff would work, Some look the same as what came on my 396.

The interchangeabilty of Chevrolet parts is incredible, life's too short to work on a ford, and you'd need a supply of antidepressants to fool with MOPAR crap!!!
Know what MOPAR stands for???
M move
O over
P people
A are
R racing

[jeh]

Originally Posted by special-K

JEH,I just assumed it was a newer GM crate 427 because it looks like one to me...or as I recall them looking like (valve covers?). Built your way is way coolest,but crates are cool as well. I know I like it and I bet she pulls as good as she looks.

Tim, a good friend of mine has local shop here in town and he builds a lot of the hot rod guys motors. Last year we put this motor together, I haven't driven the truck yet but it does shake the windows in the garage with open headers

[special-K]

Originally Posted by jeh

Tim, a good friend of mine has local shop here in town and he builds a lot of the hot rod guys motors. Last year we put this motor together, I haven't driven the truck yet but it does shake the windows in the garage with open headers

Cool! I have a similar situation. just over the hill is a fella who builds everyone's engines out of his home shop. he dies other shop's engine builds they take credit for but those in the know go straight to him. He built my 010 casting 327 that's on the stand waiting for the truck to be ready

[trukman1]

Originally Posted by MARKDTN

Mounts are the same. Bellhousing same as noted above. A tall deck is just a taller block with a wider intake. You may have exhaust manifold issues with a tall deck. Better to stay with a "car" engine. If you don't already have one, are you stuck on a 427? Why not a 454 or 502? Or an LSx? If I didn't already have the engine no way in this day and time I build a big-block for anything but an original vehicle. You can get as much or more power from an LS with less hassle and a lot better mileage and driveability.

Hate to disagree but...BBC takes a different mount/tower. Up till '71 all bbc mounts were the same. The '72 bbc mount was slightly different. You can check this out on the parts for sale board. They usually run over a hundred and up for the pair when you find them.

ETA: Clarification.