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Old 05-22-2008, 06:01 PM
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1970 454 - To Buy or Not To Buy

I'm used to small blocks, I've never owned a big block but now I'm thinking about going that route if I can get one that I don't have to rebuild. A guy in my area (BC, Canada) has a 454 asking $800. It's a truck engine and has low mileage as well, complete less a carburator. Pulled because the truck was in an accident but has never been rebuilt. I can't afford to build a big block right now but if I decide to in the future I figured it would be a good candidate as its never been tampered with before. What do you guys think? Do you stay away from the old truck motors or what? Do you think it would be an alright idea to buy it and just throw it in as is? I'm stoked over the idea but I don't want to get ahead of myself if it's not a smart choice.

Thanks Guys

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Old 05-22-2008, 06:41 PM
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I think $800.00 for a low mileage 454 is a good deal. OEM truck BB motors are typically tall blocks, and possibly a 4-bolt. I'd consider them prime for future building options.
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Old 05-22-2008, 07:01 PM
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If you can spare the bucks and it's in good shape, go for it!
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Old 05-22-2008, 07:22 PM
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It is a tall deck truck engine, I should have asked if it was 4 bolt main
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Old 05-22-2008, 07:42 PM
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I know building up tall deck BBC Blocks is getting more popular, BUTT I would rather build a standard deck BBC truck engine 2 or 4 bolt. performance parts are much more plentiful used for std deck BBCs, and cheaper new.


I think I got a 74 2 bolt main MKIV 454 standard deck truck engine thats a std bore, that should clean up at a .30 over bore. I'm going to trade a nice 65 Nova hood I have for this std deck std bore complete builder 454 BBC. the best part is, a buddie is building a 496BBC with crower rotating assembly for his 55 Chevy 210 Build, and he offered me the GM rotating assembly out of the 4 bolt main block hes using (GM steel crank and rods & pistons plus the flexplate & balancer) out of the 1976 std deck 454 4 bolt main block hes using. I don't need this stuff, but a MK IV 454 steel crank and a nice complete MK IV block for $150 plus my 65 nova hood is good parts for stash.
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Old 05-22-2008, 08:07 PM
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A 1970 Mark 4 454 7.4L engine for 800.00, I would be asking myself this simple question "38 years old and low miles, UMMMM yeh right!" this guy is probably thinking one more sucker. I would be seriously checking the engine over. It probably has an internal knocking problem of failed part that he'll blame on the installer when you get to actually putting it in. Watch yourself on this one, sounds like a bad deal!!! It must be a REMAN engine. I'd rather goto a SCRAP YARD and build one from a block that I found than take a chance on someone elses problems, especially if you don't have the dough to play with at this time.

I would talk the guy down, if he is serious about getting rid of it he'll come down in price.

Watch yourself on this one.
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Old 05-22-2008, 08:43 PM
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in my area, a good rebuildable 454 core is worth 800.00.

sam-missle
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Old 05-22-2008, 09:05 PM
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Cores

If your looking for a core engine with problems, then goto you GM dealership on Cores Return engines are usually 350.00 at the most. Some dealer will charge a markup on top of that, and would rather sell the engine outright becuase they'll make a profit, while providing you with cheap product. If your looking for something to rebuild then that would be the route, but for this engine that 2wheeler is looking at it seems to suspecious. Always expect the unexpected.

Oh yeh core prices are NOT dependant on the area or location.
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Old 05-22-2008, 09:15 PM
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In my opinion, you'd be paying $800 for a block and crank. The pistons are very tall on the piston compression height and unusable in a hot rod build. The rods will be too short to use on a hot rod build. You'll need 0.400" longer rods to mount a reasonable aftermarket piston with a standard compression height. The heads will be small intake runner boat anchors. The intake will be good to plant flowers in. So, like I said, 800 bucks for a block and crank and you have no idea if they are cracked or not until you magnaflux the parts.
Now how good does the deal look?
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Old 05-22-2008, 09:51 PM
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Quote:
Originally Posted by BlazinPlubes
If your looking for a core engine with problems, then goto you GM dealership on Cores Return engines are usually 350.00 at the most. Some dealer will charge a markup on top of that, and would rather sell the engine outright becuase they'll make a profit, while providing you with cheap product. If your looking for something to rebuild then that would be the route, but for this engine that 2wheeler is looking at it seems to suspecious. Always expect the unexpected.

Oh yeh core prices are NOT dependant on the area or location.
i never heard of dealers selling cores, but i will call a dealer and check to see if this is good info. a rebuildable core means no cracked heads or block, serviceable crank and rods.

sam-missle
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Old 05-23-2008, 05:44 PM
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Quote:
Originally Posted by BlazinPlubes
If your looking for a core engine with problems, then goto you GM dealership on Cores Return engines are usually 350.00 at the most. Some dealer will charge a markup on top of that, and would rather sell the engine outright becuase they'll make a profit, while providing you with cheap product. If your looking for something to rebuild then that would be the route, but for this engine that 2wheeler is looking at it seems to suspecious. Always expect the unexpected.

Oh yeh core prices are NOT dependant on the area or location.
called 5 places today, 2 dealers, 3 venders, neither dealer sells 454 cores.
the lowest core charge for the 454 was $800.00, the highest $1150.00.

sam-missle
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Old 05-23-2008, 07:20 PM
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How about a 366 dump truck engine! LOL Buddy has one in his barn. Pulled from the original truck, which he has sitting out in the south 40 somewhere.
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Old 05-23-2008, 07:27 PM
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From Vancouver craigslist:
Complete motor....
http://vancouver.en.craigslist.ca/pts/673712363.html
Rebuilt short block....
http://vancouver.en.craigslist.ca/pts/679395582.html
Complete motor....
http://vancouver.en.craigslist.ca/pts/673712363.html
Motor/trans.....
http://vancouver.en.craigslist.ca/pts/662059935.html
Complete motor....
http://vancouver.en.craigslist.ca/pts/662987652.html

From Seattle craigslist:
Complete motor....
http://seattle.craigslist.org/tac/pts/692409025.html
Steel crank....
http://seattle.craigslist.org/tac/pts/691695661.html
Standard bore block....
http://seattle.craigslist.org/tac/pts/691694014.html
Rods and pistons....
http://seattle.craigslist.org/tac/pts/691694274.html
Complete motor and trans for $500....
http://seattle.craigslist.org/est/pts/691068810.html
Complete motor and trans....
http://seattle.craigslist.org/oly/pts/690950168.html
Complete less intake....
http://seattle.craigslist.org/skc/pts/689804827.html
Complete....
http://seattle.craigslist.org/sno/pts/689526622.html
Rotating assembly....
http://seattle.craigslist.org/kit/pts/687332202.html
Motor/trans....
http://seattle.craigslist.org/kit/pts/687257597.html

And so forth and so on.......
Personally, I'd be rippin' the stitches out of the pocket of my jeans gettin' to my wallet to buy the standard bore block and rotating assembly.

Last edited by techinspector1; 05-23-2008 at 07:37 PM.
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Old 05-23-2008, 07:51 PM
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tech inspecter, those are some great deals, a bit to far from me tho. i guess area does matter.

sam-missle
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Old 05-23-2008, 07:56 PM
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Quote:
Originally Posted by 68NovaSS
I think $800.00 for a low mileage 454 is a good deal. OEM truck BB motors are typically tall blocks, and possibly a 4-bolt. I'd consider them prime for future building options.
I am pretty sure that the term "tall block" only ever applied to 366 and 427 HEAVY duty (i.e 3-ton truck) engines.

I bought a RUNNING but rusty 1979 C20 3+3 "Camper Special" on propane -- complete truck -- for $500 CDN a couple of years ago, and DROVE it home. I probably could have ran the engine "as was" except for converting it back to gasoline. Compression was in the 135 to 145 range. The deals ARE out there. I'd suggest getting into the interior of BC ... cattle / RV country ... and checking the local Bargain Finder.

The truck engines from this era usually had the "peanut port" heads on them, which were designed for bottom-end torque.
My engine is a 2-bolt main ... but the machine shop says they are plenty beefy ... guaranteed mine to 7000 rpm with balancing.

Get some casting numbers and look them up here, and then you'll know what you've got. It is relatively easy to track down the "better" 781 or 049 castings cylinder heads for BBC's as well.
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