Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

402 vs. 408

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Old Jan 15, 2013 | 05:37 PM
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Oh alright like I said I have $25gs to spend will it be in my price range?
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Old Jan 15, 2013 | 05:38 PM
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Also the ls3 really wouldnt be much more expensive, and the gains would be WELL worth it
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Old Jan 15, 2013 | 05:39 PM
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Holy **** $25,000

Ls3 stroker which I believe is a 418. Get some of the mast small bore ls7 heads, fast ls7 intake and a custom cam. Say hello to 600+rwhp
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Old Jan 15, 2013 | 05:42 PM
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Damn! That possible huh? Alright awesome thanks for the replies now to start looking (
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Old Jan 15, 2013 | 05:44 PM
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Ls3 stroker shortblock from tsp, check it out im gonna say 5k
Mast ls7 heads 3k
Roller rockers 1k
Fast intake another 1k

Thats 10k there but thats the huge majority of whar you need thats expensive.
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Old Jan 15, 2013 | 05:45 PM
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Yup thank you deployment!
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Old Jan 15, 2013 | 05:46 PM
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Wow awesome yea and the 9 inch and all suspension conversion parts come out together around 6 gs so that puts me right where I need to be!
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Old Jan 15, 2013 | 06:19 PM
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one last question besides the block where would be the best place to get the heads intake and rolling rockers is from???
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Old Jan 15, 2013 | 06:26 PM
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What is your intended use for this? You are talking about spending a lot of green.
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Old Jan 15, 2013 | 06:31 PM
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well my intended use for this car is a weekend driver but i will race it but i wat it to be able to drive it
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Old Jan 15, 2013 | 06:32 PM
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alot of that money is going to converting the rest of the car to handle that power
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Old Jan 15, 2013 | 06:46 PM
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would it be easier and more cost efficient to buy the block and rotating assembly and assemble it myself then to get the shortblock from tsp?
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Old Jan 15, 2013 | 09:38 PM
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Have it tested, see if it will go 4.030. I just don't like that big intake valve on a 4.005 bore. It will still make good power even if you don't go with the larger bore, its not going to be the end of the world with the smaller bore, it just works better with the larger bore IMO.
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Old Jan 15, 2013 | 09:43 PM
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Thank you!
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Old Jan 15, 2013 | 09:56 PM
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86Z28 I don't know if you have seen this thread, but here is a guy having a ton of fun on next to nothing.



https://ls1tech.com/forums/forced-in...cam-4l80e.html
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Old Jan 15, 2013 | 10:23 PM
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I have a .005 overbore LS2 Block with Custom Race Tec pistons. (404 ci).

My car is making 500 H.P. with a mild cam. Most of the gain comes from the 4" Stroke. You can really feel the longer stroke compared to the stock stroke LS1 engine. Im running stock LS3 heads with Comp Cam Beehive valve springs & a comp cams 238/240 duration 6... inch lift cam, Chromemoly push rods.
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Old Jan 16, 2013 | 01:16 AM
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WOWOWOWOWOW TurboMonte. Ive never seen a budget build quite like that. I'd rather N/A but if i have $ leftover im doing that to my truck. I had my heart set on an LS2 or 3. But then i saw that now i really dont know what to do.
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Old Jan 16, 2013 | 08:16 AM
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Default 402 vs 408

you can hit 550 hp no problem with L92 heads. just get a big intake like a fast 102 with equal throttle body. and call a prestigious cam company and explain your wants and needs and what you plan to do with the car. these heads can easily support 550 hp and better with no porting. and you dont even need expensive rockers. you can use stock rockers if desired. always remember, choose your engine size first. then get heads that can support the hp you want. after that, the camshaft. with the right combo you can push 600 hp w/ these heads if you can handle sacrificing drivability everday. i hope this helps even in the smallest bit
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Old Jan 16, 2013 | 08:41 AM
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Im telling ya still, ls3 is the way to go hands down. The big bore opens up tons of head choices for you and will really let the large valve heads shine.
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Old Jan 16, 2013 | 03:19 PM
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yea my mind is made up thanks to Tainted definitely going LS3 i feel like its easier to make power then trying to squeeze it out of the LS2
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