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Generation IV Internal Engine
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408 build

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Old 12-13-2010, 09:02 PM   #1
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Default 408 build

can anyone give me a guess of how much rwhp i should make with a 408, stock gears and m6??

this is what the 408 has...
Wiseco forged pistons with steel top rings 11.5 compression
Callies h beam rods
Callies 7340 forged crank 4.000 stroke
Clevite rod and main bearings h series race application 178.90
Durrabond cam bearings
Ls6 ported high volume oil pump
Rollmaster dual roller timing chain with torrington bearings
Ls7 lifter set
ARP main studs
ARP head studs early version 6.0 block
ms4 cam
Front timing cover gasket, damper seal,rear cover gasket,rear main seal, water pump gaskets. oil pan gasket
prc 215 heads
pacesetter headers 1 3/4"
stock ls2 intake
volant cia

also i might run a custom cam.....thank you everyone!!!
Shipping 78.98
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Old 12-13-2010, 09:41 PM   #2
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I would like to see 490-500rwhp...do you guys think im in the ballpark?
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Old 12-14-2010, 07:31 AM   #3
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If you dont already have the parts. I would go to the 408 results part II in the dyno section. Pm the guys with the engines in the power range that you want. Im sure they will send you the specs. At least thats what I would do. You can easily make that power with a 408. I dont have the know how to answer your question. Good luck
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Old 12-14-2010, 07:22 PM   #4
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I have the parts already
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Old 12-14-2010, 07:50 PM   #5
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my buddy runs a 408 with ms4 and 2.5 243s and he made 475. your running better heads with more compression. so i would say about.....485-500rw
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Old 12-14-2010, 08:44 PM   #6
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Sounds as if you have a good starting foundation to reach you HP goal. Take the advice of NODROK. Lots of great info and so forth. Good luck!
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Old 12-14-2010, 08:44 PM
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4000, 408, 60, 7340, build, callies, cam, crank, forged, ls1, ls1tech, make, ms4, stroke, tech


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