Good 427 for sale? - Chevelle Tech
What's it worth? & ebay/online sales discussions

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post #1 of 17 (permalink) Old Mar 11th, 19, 11:50 PM Thread Starter
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Good 427 for sale?

https://yuma.craigslist.org/pts/d/ty...823138602.html saw this earlier and was wondering if it seems like a good deal to anyone? heard it was all rebuilt and has 15 minutes on new build. Anyone know the horsepower range this build would be in?
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post #2 of 17 (permalink) Old Mar 12th, 19, 12:29 AM
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Re: Good 427 for sale?

With 7:1 compression and a small bore block, I'd pass even for half that. Sounds like a cobbled together POS
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post #3 of 17 (permalink) Old Mar 12th, 19, 12:39 AM
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Re: Good 427 for sale?

No!

Something's not right... the add says 71 402, but with "427" pistons... Some of the earlier blocks (65/66) can take the overbore for 427 pistons, but I have never heard of a later (especially 1971) 396/402 using the larger bore pistons... Most likely either a liar or not really sure what he has (and therefore, what else is incorrect?)Ö Even if true, the cylinder walls are likely to thin for any decent power... And what s the "7:1" compression? Blower motor that's going to be lower power unless a blower is added...
"Dunlop 30-30 cam" What a joke...


Stay away!

It should read "Duntov" cam, as in Zora Arcus Duntov, Corvette Engineer... But a "Duntov" cam (and I think the "30-30" were both for Small blocks...

That seller doesn't know much...


Assuming its a 402. worth about $500-$700 as it sits (based on description and pictures)Ö 396/402s aren't very desireable, and therefore lower value... A true 427 (1966-1969) may be worth $2000 in that condition... IF you trust the seller...

Once you go RAT, you never go back...
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post #4 of 17 (permalink) Old Mar 12th, 19, 12:49 AM Thread Starter
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post #5 of 17 (permalink) Old Mar 12th, 19, 2:10 AM
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Re: Good 427 for sale?

Quote:
Originally Posted by gauging View Post
I'd pass... That engine has the small port "truck" heads. While they can be good for low end torque (think "tow truck" or "RV"), they aren't the best performance, by far...

And flat top pistons with open chamber heads... that's low compression... Great for pump gas, but may not really be the best for a performance build...


NO mention of balanced rotating assembly...


$2500 doesn't sound really bad, IF its really well built... But who knows...

And I wonder what the "core" charge is?



Sometimes, you get what you pay for...

here is a guy with a great reputation on this site...

VortecPro - Racing & Machine - Homepage

517HP for $5400... yeah, its a little more (but I don't think there's an extra core charge), but the reputation is there too...

$620 HP for $6100!
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post #6 of 17 (permalink) Old Mar 12th, 19, 2:15 AM
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Re: Good 427 for sale?

Itís a generic 454 rebuild with a bit hotter than stock cam. Donít forget to add $500 for a core charge plus the cost of a carb, distributor, water pump, brackets and pulleys.

Unless you live in the area and are building a cruiser or truck, it would be hard to get excited about this engine.

What is it that you are looking for from an engine. Whatís your budget?

You might also want to include your location in your profile.

Steve R
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Last edited by Steve R; Mar 12th, 19 at 2:17 AM. Reason: G
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post #7 of 17 (permalink) Old Mar 12th, 19, 5:22 AM Thread Starter
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The engine would be for a 1968 chevelle with a current 327 in it, Love the small block but really want a fun street car, Budget wise i’m willing to spend up to about 7-8k on a new engine. Would like an engine that can handle a blower or something if i spent 8k though
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post #8 of 17 (permalink) Old Mar 12th, 19, 7:48 AM
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Re: Good 427 for sale?

Get a hold of Mark at Vortech Pro. He's a member here and has an impeccable reputation. VortecPro - Racing & Machine - Homepage
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post #9 of 17 (permalink) Old Mar 12th, 19, 8:44 AM
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Re: Good 427 for sale?

Sounds like your budget is spot-on for one of Mark's (VortecPro) engines. Every single aspect of his engines is well thought out and executed based on experience and real-world track testing. Spend a day researching them here, then watch his video series showing everything from choices of parts to modifications to assembly. Let him know what you want and he'll build it. Matter of fact, he'll want to know everything about the car it's going into and it's intended uses and will also have recommendations regarding those, too.
As you'll see when you do the research, he's the choice of pretty much everyone here. If I didn't build my own, I'd definitely own one of his.
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post #10 of 17 (permalink) Old Mar 12th, 19, 9:14 AM
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Re: Good 427 for sale?

With that budget in mind call Mark @VORTECPRO he also has a web page that shows his engines and price range


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post #11 of 17 (permalink) Old Mar 12th, 19, 1:10 PM
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Re: Good 427 for sale?

Just keep in mind that you need to budget for just about every part behind any slightly healthy big block. Unless your trans, rear axle, driveline, suspension, fuel system, cooling system, exhaust and brakes are upgraded and ready for double the power your making now you're going to be frustrated in ways you never imagined. Especially if you spend your whole budget on just the engine.
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69 Malibu Stock 307, Reverse Manual TH350, 4,500 Stall Edge Converter, 4.56 Spool 35 Spline 12 Bolt

76 C20 VortecPro 496 628HP 655 lb/ft TH400 Edge Converter, 4.10 14 bolt
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post #12 of 17 (permalink) Old Mar 12th, 19, 1:56 PM
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Re: Good 427 for sale?

guaging, you in CA? Or where are you?

I'm finally replacing my "garage built" 427 with a pro built one. Oh, we have many "pros" around where I live, but frankly, I couldnt find ONE that had a superb BBC knowledge, but found a good machinst near by.

One of the "pros" rebuilt my bud's engine, and when it dropped a valve cruising on the highway, I asked which shop. Our shop used to fix their eff ups thirty years ago. I sent him to Mr Jones. Now, these are guys that claim to be familiar with BBC's. What a friggin' joke. POINT IS, a non-running engine... is a total crap shoot even when done by "pros". Nevermind the yard sale crap on craigslist.

Do you know how to do a compression test? Any used mill you should.

Gene
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post #13 of 17 (permalink) Old Mar 12th, 19, 4:36 PM
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Re: Good 427 for sale?

You mention a blower, what sort of performance level are you looking for? How will the carvbe driven?

Steve R
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post #14 of 17 (permalink) Old Mar 12th, 19, 8:04 PM
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Re: Good 427 for sale?

Times 2 to what the Cat said. Don't think stock items will hold a MJ 496 very long even if the car hooks just slightly and yes Marks engines are hard to hold, lots of power and a heavy foot can break things, and you will have a heavy foot, just human nature. And no I have not broken anything yet,. My drive train has all been up graded and should almost be bullet proof.
Hold on to your hat, you are going to have a oh "****' moment or two.
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post #15 of 17 (permalink) Old Mar 12th, 19, 10:25 PM Thread Starter
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Quote:
Originally Posted by 427L88 View Post
guaging, you in CA? Or where are you?

I'm finally replacing my "garage built" 427 with a pro built one. Oh, we have many "pros" around where I live, but frankly, I couldnt find ONE that had a superb BBC knowledge, but found a good machinst near by.

One of the "pros" rebuilt my bud's engine, and when it dropped a valve cruising on the highway, I asked which shop. Our shop used to fix their eff ups thirty years ago. I sent him to Mr Jones. Now, these are guys that claim to be familiar with BBC's. What a friggin' joke. POINT IS, a non-running engine... is a total crap shoot even when done by "pros". Nevermind the yard sale crap on craigslist.

Do you know how to do a compression test? Any used mill you should.
I’m up in Yuma AZ not sure how to add it to my bio since i’m mobile, Hows the engine and how much would you want it for?
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