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Old 06-04-2003, 12:33 PM
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Post 454 + Tall Deck?

Gentlemen,

I recently acquired a truck that has a 454 in it. Eventually I'd like to transplant it into my 1957 Pickup.

I was actually wondering what the story is on the "Tall Deck" flavors of 454. Will this limit me in any way, is it non-desireable? I'll pick up a book on 454's soon enough, any input would be appreciated.

thanks
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Old 06-04-2003, 02:13 PM
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Unstable, I'm still new to all this, but from I've learned, a tall deck just means the deck is higher which would lower your compression. I'm not sure if anything else is different with the block (length of rods/stroke of crank). Just what I "think".
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Old 06-04-2003, 02:33 PM
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Years ago (30+) when I was drag racing..the TALL DECK BigBlockChevy blocks were very desirable. They were 427's and the deck was .440 taller than a standard BBC. They came in big trucks and had a extra ring on the piston for oil control. They were NOT a performance engine from the factory.

Standard heads, and most parts interchange. The most noticeable difference (will not interchange) is the intake and distributor. We made spacer plates so we could use performance intakes .....I believe they are available now over the counter (NEW). The distributor was modified by triming the collar off and making a slip collar for it. I know these are availale now....MSD makes slip collar distributors now.

Their main advartage to me was I could buy a .440 stroker crankshaft (.440 over a stock 454) and use standard 427 L88 rods and off the shelf 454 pistons and still have a LARGE STROKER engine.

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Old 06-04-2003, 03:07 PM
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coolness. I was looking at a chart, and it seems that the 1977 models listed were tall-decks, so I figure that's what's in it...not able to check numbers yet.

Just as long as a talldeck isn't like a SBC 307 or something.
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Old 06-04-2003, 05:08 PM
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The easiest way to tell a tall deck block that is complete or in a vehicle is they have dual thermostats in the upper water outlet. None were produced in pickups.
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Old 06-04-2003, 05:09 PM
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When Duece said big truck he means BIG TRUCK like a 2 1/2 ton truck or a baby dump truck so I hope you arent expecting to find one in a pick-up truck.
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Old 06-04-2003, 06:03 PM
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Also IF the engine is out of the vechicle and you are used to looking at standard deck BBCs...... the area between the water pump mounting pad and the deck is noticeably different. The tall deck is thicker (taller) in that area.


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Old 06-04-2003, 07:28 PM
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Do a little checking, but I don't think there was ever a tall deck 454 produced. The 366 and 427 where the only two sizes avalible in the tall deck truck engine. Dan
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Old 06-05-2003, 05:26 AM
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Here's what I was looking at:
<a href="http://www.roadsters.com/bbc/" target="_blank">http://www.roadsters.com/bbc/</a>

The vehicle is a 77 and is equipped with a 454...according to these charts it's either a 4-bolt tall deck or a two bolt.

364776 454 1977-1990 Four-bolt (tall-deck)
3999289 454 1972-1979 Two-bolt
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Old 08-20-2005, 12:08 AM
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Questions

I know this post is about 454 but I can't seem to find anyone else that knows much. I have a 427 Tall Deck out of a truck some years ago. I am going to make it into a stroker. I found a kit to do it through a company. I don;t know for sure if It will work. What are the Main Differences?

Here is the website:
http://www.adperformance.com/index.p...x&cPath=71_232

The above should talk to you the link. Duece, you where talking about making a stroker with the stock rods and the .440 crank. Could you tell me more.

I appreciate any and all responces.
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Old 08-20-2005, 05:56 AM
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Oh yes there were 454 tall deck blocks... But only one was in a production truck and it was very limited and was a Gen V which did not appear till 1990 or later...


unstable... the block number 364776 is not a 454 produced block it was a 68-85 year block and was made as a 427T only which is a truck block but came only in some special order 1 ton trucks but mainly in C60`s or larger... Now a 427 & 454 share the same crank journals and bore so it can be built that way just like a short deck block but as coming originaly it was a 427 which is a 3.76 stroke and not the 454`s 4.0 stroke...


LowVintage49... The tall deck combo or stroker is no longer the sought after combo mainly because its a low rpm combo but its a high torque setup... Many of them were done as 540 cui but its been found that a big bore is better than the long stroke by itself... I know of several that are collecting dust in various combinations of stroke and rods... BTW most were bored to 4.350 (.100 over and some to .125 over)
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Old 08-20-2005, 09:07 AM
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a tall deck 127 or 454..has the same strock as a regular deck...3.75 crank...there in no magic crank in a tall deck..
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