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Katech "Value 427" short blocks

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Old 09-08-2006, 01:55 PM
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Thanks!!!!



Sorry. $4500 w/ porting, assembled with high lift springs and ti retainers
386 cfm @ .700 lift 28" vacuum

hehehe......
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Old 09-08-2006, 02:51 PM
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Originally Posted by Katech
Sorry. $4500 w/ porting, assembled with high lift springs and ti retainers
386 cfm @ .700 lift 28" vacuum


Totally sick. You'll be hearing from me when I decide to get some heads.
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Old 09-08-2006, 04:51 PM
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Originally Posted by Katech
Sorry. $4500 w/ porting, assembled with high lift springs and ti retainers
386 cfm @ .700 lift 28" vacuum


Hmmmm looks like some parts are coming togther here.
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Old 09-09-2006, 12:23 PM
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Originally Posted by Katech
Sorry. $4500 w/ porting, assembled with high lift springs and ti retainers
386 cfm @ .700 lift 28" vacuum
don't mean to bogart the thread, but what lift are those springs good to? assuming that is with ls7 valves?
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Old 09-09-2006, 10:06 PM
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Originally Posted by 383ss
don't mean to bogart the thread, but what lift are those springs good to? assuming that is with ls7 valves?

stock valves


.700
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Old 09-10-2006, 06:02 PM
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386 cfm What would the power increase be with those heads? Thanks Jason for your time in the thread.
Last edited by Speedpup; 09-10-2006 at 06:20 PM.
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Old 09-10-2006, 06:17 PM
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Patrick G says 1-1.5 hp, per cfm gain, on an LSX. Comparing same engine - head to head straight up. FWIW.
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Old 09-14-2006, 08:56 PM
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so this value block will be able to hold boost?
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Old 09-15-2006, 07:38 AM
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Originally Posted by caindo
so this value block will be able to hold boost?

Yes. We can build with low compression pistons at no extra cost.
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Old 09-15-2006, 06:48 PM
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thats a good deal
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Old 09-15-2006, 07:22 PM
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Note to self...start saving...I will put that on my todo list...Katech 427 low comp engine would be oooodles of fun.
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Old 09-18-2006, 05:17 PM
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What kind of power can be made on these sleeve blocks? The reason I ask is because it seems that after 600hp on the engine dyno, they start smoking like a train from the valve covers.
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Old 09-18-2006, 08:32 PM
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Originally Posted by Tuf-Titan
What kind of power can be made on these sleeve blocks? The reason I ask is because it seems that after 600hp on the engine dyno, they start smoking like a train from the valve covers.
We have tested to 600hp, but we have been selling the bare blocks for some time and I'm sure we have customers running more than that.
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Old 09-19-2006, 06:18 PM
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What would a set of LS7 pistons go for? I need a set for my build. Also should I consider using the factory Ti rods, or the compstars you all sell? Thanks.
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Old 09-19-2006, 06:52 PM
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Originally Posted by Tuf-Titan
What would a set of LS7 pistons go for? I need a set for my build. Also should I consider using the factory Ti rods, or the compstars you all sell? Thanks.

$159/each.

What power level?
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Old 09-19-2006, 08:02 PM
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I would like to say 700hp na
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Old 09-20-2006, 07:44 AM
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Originally Posted by Tuf-Titan
I would like to say 700hp na

We have customers running 650hp with the titanium rods. It's your choice.
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Old 09-23-2006, 05:57 PM
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Originally Posted by Bink
Thanks Jason!! Your diligence is appreciated.

Katech "Value 427" short block with Katech forged LS7 pistons, hardcoat anodized..................................$7230
Billet main Caps.........................$1000.
*********************Total $8230

Jason,
Can you give me pricing on 3.26" (3.25?) forged crank and complementary rods for the above setup?? A "Value 346 Sneak Attack" shortblock
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Old 09-24-2006, 08:34 PM
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Originally Posted by Bink
Jason,
Can you give me pricing on 3.26" (3.25?) forged crank and complementary rods for the above setup?? A "Value 346 Sneak Attack" shortblock
add $1000
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Old 09-24-2006, 08:51 PM
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Originally Posted by Katech
add $1000
Originally Posted by Bink
Katech "Value 427" short block with Katech forged LS7 pistons, hardcoat anodized..................................$7230
Billet main Caps.........................$1000.
*********************Total $8230
Add $1000 and I have ******$9230

Value Sneak Attack 347
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