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Old 12-09-2012, 05:09 PM   #1 (permalink)
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Default Autozone engine

ok so autozone sells a reman 302 that supposidly has 306hp for 2600 which doesn't sound bad. Or do you think would be better to get the edelbrock topend kit and just get my 302 rebuilt?
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Old 12-09-2012, 05:28 PM   #2 (permalink)
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I vote for build it yourself.

Here is what I usually do. I search for an engine build that has already been dyno'd, and use the exact same parts as they did.

Here is a good list.
http://www.airflowresearch.com/ford_dyno.php
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Old 12-09-2012, 05:34 PM   #3 (permalink)
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I thought about that so i could get satisfaction of doing it myself and the emulating others is smart.
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Old 12-09-2012, 07:14 PM   #4 (permalink)
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I thought about that so i could get satisfaction of doing it myself and the emulating others is smart.
Tw 170 heads with a RPM or Stealth intake and a decent roller cam will make great power without over spending.
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Old 12-09-2012, 07:38 PM   #5 (permalink)
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Sure, do it yourself. I did'nt know AZ sold Chinese rebuilt engines. John--Las Vegas
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Old 12-09-2012, 07:39 PM   #6 (permalink)
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You mean THIS ONE?

When they say "$2600" is that just a basic long block or a complete engine? I'd think this would be a MUCH better deal... Blueprint Engines SB-Ford 331ci Stroker/ 330HP/ 360TQ - JEGS

My experience with "factory" rebuilt engines marketed through big-box auto parts stores is that you can end up with a mongrel if you can't control the rebuilding process. You could get a C5AE head on one side and a C8OE on the other, "consumer grade" components, and a build that was done by an assembler being paid on quickness rather than quality.

I'd also give little credence to published dyno numbers for engines that never see a dyno and test run before being shipped.
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Old 12-09-2012, 07:49 PM   #7 (permalink)
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I'd by oil and non-Fram filters from Auto Zone. And I like their batteries. I won't buy parts there. A whole engine? NFW. (No foreseeable way.)

Such low-buck, mass produced engines are typically a hodge podge. A few cylinders might be bored. Others not. They typically have a very high threshold for wear and take action only when outside that threshold. Thus, they won't bore cylinders or machine crankshafts unless they're very worn out.

Do you think the people who build those crate engines are smarter than you? I doubt it. If you can find a good, local machinist, take your block, crank and piston/rod assemblies there. Have them bore the block, turn the crank and put new pistons on the rods. (You can assemble pistons to the rods yourself, but without a large press, it's kinda dicey. And it's not that expensive to have a machinist do it.) Also have the shop install cam bearings. Those are a pain.

Then buy a copy of "How to Rebuild Your Small Block Ford". Read the book from cover to cover, then follow it step by step.

If you boost the compression to 10:1, install a decent cam with headers and an aluminum intake, it will be a very strong street engine. If it's in your budget, buy some good aluminum heads for much better performance. Oh, and have the distributor curved while you're at it.
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Old 12-09-2012, 08:33 PM   #8 (permalink)
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Yep, I was going to do the autozone route, but when I called the builders they couldn't tell me anything about the bore size, CR, or brand name of parts used. Wouldn't custom anything for me either....like the camshaft. After a few "im not sures" I built mine to my specs. It took me a while and came across a few hurdles, but its running. I just hope it holds up. Bored 351w .060, haha.

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Old 12-09-2012, 08:38 PM   #9 (permalink)
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Quote:
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They typically have a very high threshold for wear and take action only when outside that threshold. Thus, they won't bore cylinders or machine crankshafts unless they're very worn out.

Where are you buying your engines? Never heard such stuff. I have never sold an engine that was not bored or the crank not turned. Many engines are either marked or come with a sheet showing the bore and crank turn specs. Many engines also come with a sheet showing the oil pressure when they are on the test stand .The link above is from VEGE engine in Arizona . I believe many/most of their engines are rebuilt across the border in Mexico . I've sold a couple of their performance engines over the years and the customer was very happy with the performance and the name brand materials . Yes, there are sometimes issues on mass built engines . Not everyone has the budget to have a QUALITY local machinist build their motor or the time/experience to do it themselves . Always do some research before spending a large amount of money on an engine or what ever else you are buying .
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Old 12-09-2012, 08:56 PM   #10 (permalink)
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The rebuilder for AutoZone - Surefire Engines Available From AutoZone | Remanufactured Engines | Crate Engines
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Old 12-09-2012, 09:18 PM   #11 (permalink)
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Looks like it is Vege but with a different name and website when used by Autozone or O'Reilly .
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Old 12-09-2012, 11:28 PM   #12 (permalink)
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Where are you buying your engines? Never heard such stuff. I have never sold an engine that was not bored or the crank not turned. Many engines are either marked or come with a sheet showing the bore and crank turn specs. Many engines also come with a sheet showing the oil pressure when they are on the test stand .The link above is from VEGE engine in Arizona . I believe many/most of their engines are rebuilt across the border in Mexico . I've sold a couple of their performance engines over the years and the customer was very happy with the performance and the name brand materials . Yes, there are sometimes issues on mass built engines . Not everyone has the budget to have a QUALITY local machinist build their motor or the time/experience to do it themselves . Always do some research before spending a large amount of money on an engine or what ever else you are buying .
I'm not sure what you're trying to say here. Do you work at or manage an Auto Zone which sells these engines? If so, and you can vouch for them, fine.

But I have seen "remanufactured" engines with a few cylinders that were bored, and the rest were not. I've seen a "remanufactured" engine that had a completely worn out camshaft in it. I have also seen remanufactured engines that were built very well. I put one into my pickup truck about 15 years ago. Thus, I would be leary of ordering an engine from some place far away unless I had some very good assurances that it was a quality product.

So, if you can provide those assurances, that's great. But based on what mikek69 reports, I don't get a good feeling about that builder. They likely use whatever parts they can get cheap. It's an understandable business decision, but someone looking for a performance engine would probably want to know what's inside.

Last edited by Klutch; 12-09-2012 at 11:31 PM.
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Old 12-09-2012, 11:32 PM   #13 (permalink)
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Keep an eye on Craigslist. You can find some poor sap whose wife is making him dump his project. I've seen blocks with all the machine work done for $200. I think I spent $500 on machine work just for the block.
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Old 12-10-2012, 12:36 AM   #14 (permalink)
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I agree with AJZRIDE about craigslist. I've seen a lot of engines there. I would search a couple hundred miles radius from you. There's a lot of started projects that are looking to sell. Try using searchtempest.com
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Old 12-10-2012, 01:42 AM   #15 (permalink)
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a friend had an ozone(autozone) 302 engine. it was junk. no power and it ran hot and when he tore it down the cam was flat and it was bored .040 over. the crank snout was beat up. he thode it in a dumpster.
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