Budget 408 Build
08-11-2011, 07:58 AM
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Budget 408 Build Have in Mind to build a 408 for my 99 SS....I am New to the LS1 game so please bare with me..
I would like to build a 500 + 408 weekend car,on the shortblock just want to go Forged pistons and some H-beam rods...Can I use the stock crank??? Can you all give some ideas on Heads an cam too... Thanks For the Help Guys...( Not a Race Car)
I would like to build a 500 + 408 weekend car,on the shortblock just want to go Forged pistons and some H-beam rods...Can I use the stock crank??? Can you all give some ideas on Heads an cam too... Thanks For the Help Guys...( Not a Race Car)
08-11-2011, 08:22 AM
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Kind of depends on the block you are using for your build. Since you want to do a 408 you wont get there with an LS1 block unless you re-sleeve it (which isnt typically budget friendly). Chances are you are looking at stroking a 6.0 block, which means you would be needing a stroker crank. What are your thoughts for the block you will be using? You could do a 402 (4" bore, 4" stroke) stroker with an iron block 6.0 I suppose, which is a popular build these days.
08-11-2011, 08:35 AM
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08-11-2011, 12:16 PM
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Kind of depends on the block you are using for your build. Since you want to do a 408 you wont get there with an LS1 block unless you re-sleeve it (which isnt typically budget friendly). Chances are you are looking at stroking a 6.0 block, which means you would be needing a stroker crank. What are your thoughts for the block you will be using? You could do a 402 (4" bore, 4" stroke) stroker with an iron block 6.0 I suppose, which is a popular build these days.
08-12-2011, 07:39 AM
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Here is what Im looking at :
http://www.texas-speed.com/p-903-tsp...-assembly.aspx
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08-12-2011, 07:46 AM
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TSP is where Ill be buying my rotating assembly next month, Matt and the guys there have been great. I was able to watch Craigslist and found a new bare block lq4 for $550 that was local. Usually new Lq4/9 blocks are running between $650 and $800 now a days. There are also used/junk yard 6.0 blocks out there, if you do that - just be picky. Make sure to measure the bores and look for any signs of abnormal wear/cracks, etc...
Here is what Im looking at :
http://www.texas-speed.com/p-903-tsp...-assembly.aspx
Here is what Im looking at :
http://www.texas-speed.com/p-903-tsp...-assembly.aspx
Thanks for the info again..
08-12-2011, 12:49 PM
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Some 243 LS2/LS6 heads would likely be well worth if you want to grow into the build and do heads/cam later. Most ported and polished 243s will flow around 05-320 cfm at .600 lift, so bear that in mind with your cam choices. However with the LS6 heads and LS1 intake you will still be leaving quite a bit of power on the table. Also bare in mind your static compression ratio when you build out rotating assemblies. I think Matt @ TSP and I figured I would be running 11.2:1 compression ratio with 63.5 cc heads (-0.012 milled deck) and -8cc dished pistons. That is with a .040 head gasket.
