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Old 01-18-2004, 12:08 PM
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427 tall block for my beast

I just got a hell of a deal on a 427 4 bolt tall truck block that looks to be in good shape, I also got these heads for it (6272292) all for a grand total of 325 bucks! The guy also gave me the longer truck rods and pistons that I need for the taller (.400) block. I am so psyched! I know everyone is going to tell me I shoulda just bought a 454 at a junkyard but there dont seem to many around here and these are the only parts I needed as I'm going to buy a 496 kit to replace everything but the block, heads, and rods. here is the kit, I know it's cheap but I'm not really dragging, it's just for street.

http://cgi.ebay.com/ebaymotors/ws/eB...EBWA%3AIT&rd=1

or this one;

http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEBWA:IT

or the really good one;

http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEBWA:IT


Which one is best? Do I really need the forged stuff if I'm not racing? It's going into a 72 impala.
What are the steps I need for cleaning it up and getting it ready for the kit; I know I need to have it hot tanked (pretty rusty, everything, have it bored .060 over, and maybe mill the deck? With the longer rods I have (+.400) everything should fit fine. Oh yea, the block has been line bored and that part is not rusty or dirty at all.
Any help with this thing would be soooo appreciated!

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Old 01-18-2004, 12:28 PM
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first of all, the rods arent longer (still just 6.135) just beefier!!, the pistons are different, so if i were you i would keep the block and but a rotating assembly, crank, rods and pistons and upgrading to the longer rods, you will also need different pushrods than is included in the kit. and spacers to fit the intake-manifold.
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Old 01-18-2004, 12:33 PM
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spacer

Where do I get one of these kits for the spacer and who makes a good one?

Thank you for above info.
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Old 01-18-2004, 12:47 PM
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you can propably get a stroker kit from PAW. or summit to fit your application, i know PAW sells a stroker 510 cui, shortblock made from a tall deck block like your new project. try and give them a call. Speedomotive is another sure bet.
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Old 01-18-2004, 05:07 PM
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Slowass72 Glad someone else is building a427 tallblock.The crank in mine is a cast crank and 4bolt main.From what i understand this is a strong setup.Its a 3.760 stroke.The pistons that came with the block are large 4 ring pistons .They have to be changed to 427 car pistons with 1.76 compression height.Rods must be changed from 6.135 to 6.535 to make up for shorter pistons.I found a set of 3993820 heads for mine ,larger valves.Also the only intake i could find to fit tallblock and not use spacers was a weiand team g.I think im right on compresion height but am not a 100% sure.might check with some of the other members to make sure.Hope this helps Dennis
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Old 01-18-2004, 05:25 PM
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intake

I found another intake for it- a Dart BBC tall block intake at Summit racing. I dont know if it matches up to my heads, but I'll do some more research. They also have manifold spacers for like 60 bucks! The rods I need for my 496 stroker aRE 6.535 so I'll just get them from the kit maker too.
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Old 01-18-2004, 05:32 PM
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Slowass72 You have to watch on the intake if you use spacers your stock dist.will not work .Also look to see if the dart intake is machined for stock dist. Dennis
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Old 01-18-2004, 05:43 PM
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what motor do you currently have in your slowass72?
(has nothing to do with the question im just curious)
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Old 01-18-2004, 07:35 PM
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That is a excelant choice to build on,one of the big advantages is you can run a longer rod,so your pistons dont get as beat,or you can get pistons with a lower pin hight and that is stronger than the ones your looking at,either way, you win.
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Old 01-18-2004, 08:45 PM
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a lil 350....

It has a stock 350, not weak by any means, but I figured while I have to rebuild it anyway, I might as well build a huge big block for a little more loot. Once I priced blocks and stroker kits, I figured what the hell. It has the th350 which will hook right up to the BBC so thats a step saved (until I have to upgrade it).
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Old 01-19-2004, 08:34 AM
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You will have more in it,but you'll have so much,----well,so much,and way stronger,now,have you accounted for exploded differential/transmissions etc cause it will do it.
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Old 01-19-2004, 08:47 AM
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I have a WD in RI, Flowtech Induction. He carries our intake spacers. USA made. Watch out for the chinese stuff. You will also need a slip collar dist for your big block. +.400 long pushrods will be a requirement also.

Cstraub
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Old 01-19-2004, 10:08 AM
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like i said, speedomotive sells a complete tall deck block stroker kit for 1200 bucks, with long rods and everything, give them a call and they will sort you out.. atleast when you have a complete quote you will be able to make an informed choice.. ( i believe they have a blowout sale on nodular 4.25 stroke cranks for bbc, they sell at 295$ a piece..)
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