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Old 02-23-2009, 03:41 PM
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Tall Deck 427

A friend of mine has a 427 which I think is out of a truck but anyway he says it is a tall deck (I'm not really sure what that means) and he is putting it in his chevelle but it has no hole near the oil filter for the clutch linkage. Anyone else have one of these? What do you do for clutch linkage?

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Old 02-23-2009, 04:20 PM
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The meaning of the "tall" deck means the height of the block deck from the crank centerline to the top of the deck where the head bolts to. They are .400 taller and require several special parts that have to be used in conjuction with the block. The pushrods are longer, the distributor is longer, it requires an intake manifold for a tall deck, the headers are going to have to be longer(taller), because they could interfere with the floorpan. The pistons being used will have to be special for the taller compresion height if your using a non-truck 427 piston. Plus, there about 75-100 lbs. heavier than a conventional passenger car block. I've seen many 366 and 427 blocks, and they all had the standard bellcrank pivot ball in the side by the oil filter like the passenger car blocks. Don't know why yours wouldn't. If it has the boss cast into the block for it, then just drill and tap it....
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Old 02-23-2009, 04:52 PM
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No, it has no place to drill it and he's afraid to drill it without the boss.
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Old 02-24-2009, 04:46 AM
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Bump. Anyone have this problem on any other engine?
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Old 02-24-2009, 09:49 AM
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That is odd, all I've seen have the boss. Those tall decks have huge/heavy pistons with 4 rings per piston. Definitely not for performance without upgraded rods and pistons.
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Old 02-24-2009, 10:08 AM
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This is only one of the many issues and headaches your friend faces with trying to install this engine in his car. Some aftermarket bellhousings have provisions for the bellcrank pivot ball to fit them. Since these engines were only designed to fit into very large trucks, the truck bellhousing would work, but I doubt he would want to put an 800 lb. transmission in his car. I think he should seriously rethink his swap, its only going to get worse. If it still has the truck oil pan on it, it wont clear the front crossmember either, then you'll have to change the oil pump pick-up tube also. Its going to just keep snowballing on him until he reaches a point where he could have had a much better engine for a lot less money. If he is planning on making a street car out of it, all the pulleys will have to be changed to passenger car style and that will include having to change the harmonic balancer as well, because the truck balancer wont accept the passenger car pulleys. There are just so many differences in trying to install this engine in a car, he should make sure the "end justifies the means"....If he is planning any internal engine mods, all the 366 and 427 engines are gear drive and the camshaft rotates backwards compared to traditional camshafts made for timing chains, and wont interchange without have to change the timing set as well....it just never ends.
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Old 02-24-2009, 10:13 AM
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Quote:
Originally Posted by SSedan64
That is odd, all I've seen have the boss. Those tall decks have huge/heavy pistons with 4 rings per piston. Definitely not for performance without upgraded rods and pistons.
Yeah, me too! I think before long he'll realize he should regroup on this swap! It could be made to work, but it just wont be cost effective in the end...
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Old 02-24-2009, 12:17 PM
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I had a 427 tall deck in my 57 Chevy,Worked out great for me.

And as you can tell by the marks on the ground,It was a bad A** ride. And them marks was well over 150 feet.
And almost 20'' wide. (each)
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Old 02-24-2009, 12:49 PM
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Quote:
Originally Posted by NEW INTERIORS
I had a 427 tall deck in my 57 Chevy,Worked out great for me.

And as you can tell by the marks on the ground,It was a bad A** ride. And them marks was well over 150 feet.
And almost 20'' wide. (each)
Looks like you had an automatic though....Hmm....
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Old 02-24-2009, 04:16 PM
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Quote:
Originally Posted by NEW INTERIORS
I had a 427 tall deck in my 57 Chevy,Worked out great for me.

And as you can tell by the marks on the ground,It was a bad A** ride. And them marks was well over 150 feet.
And almost 20'' wide. (each)
Big difference between taking one straight out of a truck and trying to install it in a car vs. building a tall deck from scratch to install in a car....
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Old 02-24-2009, 06:54 PM
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Quote:
Originally Posted by CNC-Dude
Big difference between taking one straight out of a truck and trying to install it in a car vs. building a tall deck from scratch to install in a car....
It's not as bad as you make it sound...
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Old 02-24-2009, 06:57 PM
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Quote:
Originally Posted by maxpower_454
Looks like you had an automatic though....Hmm....

Yes it was a automatic. I know it wasn't what you was asking,But I just wanted you to know it can be make into a good motor,Besides what everyone says.
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Old 02-24-2009, 07:43 PM
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they make a mount for the 502 blocks that mounts to the bellhousing bolts
i think you can get it from scoggin dickey
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Old 02-24-2009, 07:50 PM
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here is the link
http://www.sdparts.com/catalog/trans...lBrackets.aspx
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