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Old 03-04-2011, 09:05 PM
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motors

hey i was wondering what is the difference in a 1975 427 truck motor and a car mortor, and thanks for your input

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Old 03-04-2011, 09:19 PM
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No difference. This should be in the basics section.
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Old 03-04-2011, 09:43 PM
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there can be a big diffrence in truck big blocks and car big blocks.. tall deck ( truck ) engines use diffrent heads, intakes and even use a diffrent distributor I think, than the more popular low deck big blocks.. tall deck blocks were only used in big trucks. I think 1/2 ton - 3/4 ton got the lower deck engines. but I'm not entirely sure
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Old 03-04-2011, 09:49 PM
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I believe the only 427 truck-specific motors made were tall blocks, that is .400 taller deck height. While that's not a bad thing in of itself, it can make stuff like matching up your intake manifold and distributor somewhat difficult. If it's a tall block, stay away. A quickie lookup gives me casting numbers of 340220, 364776, 473478 and 3782870 for 427 tall blocks.
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Old 03-05-2011, 07:34 AM
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Quote:
Originally Posted by j55hall
hey i was wondering what is the difference in a 1975 427 truck motor and a car mortor, and thanks for your input
There is nothing wrong with a tall-block 427 there may be some differences but you can still have a great engine after it's done JMO. if it is what you have don't just toss it out someone else would really like to have that engine. people build them all the time and get good power from it also.
what are you wanting to put it in anyway ?
there could be some clearance issues depending on what you would be putting it in but it will fit in most with alittle help. JMO (hood clearance/brake booster/ valve covers)just so you know.
Just so you know the tall 427 can be a very good engine with the right parts and the funds to do it. Stroker motor is what most do with them. Just not cheap to build.IMHO



Cole

Last edited by eloc431962; 03-05-2011 at 07:58 AM.
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Old 12-29-2011, 07:49 AM
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motors

i have a great 366 tall deck but it is for low in torke 4500 rpm, out of a 78 schoolbus,63000 ml. on it.thay are great motors. but i dont need it. working on a 250 6cyl. need a good in take.
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