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Old 04-24-2009, 09:46 AM
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Buying a used motor

Ok a local guy has a 454 from a 70 SS Chevelle. Its not in the is complete from carb to pan. I talked to the guy he claims it was his daily driver last year. He pulled it to put in a 572 big block. Anyways this is for more than just me, but what things can you check to make sure that it is a running motor. obviously cracks in the block, but besides the absolute obvious what can you do to make sure that you are not buying a motor with a tossed bearing or seized? If the seller lets you take the heads off how would you even tell then that anything is messed up?

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Old 04-24-2009, 10:38 AM
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By taking the heads off.. you can somewhat tell how the engine was taken care of and or how it ran (I can). Look at valves, burned or not. Richness, leanness etc. You can see that piston are in good shape. If you can get the pan off, you can wiggle the rods to see how much play is there if there's any metal in pan, how scared the block is or isn't on the inside.

I needed oil pan bolts for a motor I'm putting together, so I went to pick a part a few days ago. I walked the yard and walla a sbc stuff in the back of the trunk of something (never looked at car) but my immediate thinking was someone's coming back for this baby.. and the clue was it was in the trunk.. literally. I thought.. Hmmm.. someone made it easy for me considering the parts I needed. While I was taking pan bolts off I gave the motor and overall inspection and gave it a grade.. and could see why someone would want it. Getting the pan off and inspecting the rods (visually and wiggling) proved it. I am going back today to see if it's still there to buy the whole motor.

If you get the pan off take a peak at the cam. Look for signs of wear and to what degree. That could be an indication of the rest of the motors shape. Sometimes you can get lucky, others your buying a core. I've found most though that if you put some pressure on the guy selling it.. he may give you little clues that doubt something. If he doesn't, then you may have a winner.. and his intentions for selling are completely honest. Also, what did he put the 572 BB in.. and is it actually in.
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Old 04-24-2009, 12:15 PM
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Yes...the motor in is a 70 chevelle..non SS...he bought the 454 to use until he got something bigger. He has something bigger.......He is reenforcing his frame before he really hecks the full power of the motor.....but the 454 is going for 1800? Good price or so-so. It is 450 horse right?
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Old 04-24-2009, 09:07 PM
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here is a link to some rebuilts for the same money. If you are gonna spend that kind of money might as well be new/rebuilt with a wattaenty.
Buyinyg used I would wait to buy one running before takemn ouyt
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Old 04-24-2009, 09:59 PM
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1800 holy crapola! *** ?:O

a complete and mostly stock 454 maybe 600 tops depending on if it has any accessory brackets etc on it or not and what vintage they are, and if its known to run good and not needing any internal work done

SWP style p/s and a/c on it would demand more $

really a gamble without tearing it apart to inspect.

thats why its best to see hear it run

but for 1800 it better be brand new inside and out and be platinum coated, sheesh! :0 i mean granted 454 are not so common as they once were but they are far from rare. if it has no brackets on it, and it doesnt appear to have been gone through and redone anytime recently, and it cant be heard running, then id say no more than 300 tops,
and even thats a stretch.

just my $.02 and i had to reply when i saw 1800, i about fell off this chair.

good luck

Last edited by fast68; 04-24-2009 at 10:06 PM.
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