Forced Induction Superchargers | Turbochargers | Intercoolers

forged 370 or 408?

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Old Oct 4, 2011 | 07:58 PM
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Default forged 370 or 408?

going turbo, it will be a while before i get the money to buy a motor, what would be best, looking for around 800 hp
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Old Oct 4, 2011 | 08:01 PM
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408/pt88 would be my guess but im still learning.
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Old Oct 4, 2011 | 08:02 PM
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At wheels? Auto or no?
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Old Oct 4, 2011 | 09:26 PM
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Twin or single?
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Old Oct 4, 2011 | 09:54 PM
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well ive had a 364 and my 402 is on the stand right. give me a few weeks and ill tell you what i like more lol
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Old Oct 4, 2011 | 09:59 PM
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370? or 408? I would find a good engine builder and wouldn't worry about it. Tell them you want 800hp send them your money and wait for delivery.
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Old Oct 4, 2011 | 10:36 PM
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well with the 370 you can run a stock crank, whereas the 402 requires a stroker crank. Its all about money and overall goals.
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Old Oct 5, 2011 | 12:43 AM
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Only 800hp which is about 700rwhp a 370 would be your cheapest route and do it with about 15psi , maybe less depending on flow of heads and cam choice. 408 would be for 900+rwhp in my opinion.
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Old Oct 5, 2011 | 08:10 AM
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Now that i have had both sized engines in my car, i would recommend the larger stroke if it is mainly a street car. Torque down low, easy to spool, etc... I have read about piston scuff on the larger stroke but it is worth it to me. Both cubes are lots of fun under boost though so you can't go wrong either way!! Best of luck
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Old Oct 5, 2011 | 08:18 AM
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keep the stronger piston, 370
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Old Oct 5, 2011 | 09:04 AM
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370 here...

too much bad luck with stroker cranks, may just be my luck but either way mine is built with a forged callies "stock" stroke crank... 1000rwhp and much more left on the table if I'll ever get a quality top end, the WCCH 317's are my current bottle neck...
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Old Oct 5, 2011 | 10:07 PM
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390 would be a good compromise.
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Old Oct 8, 2011 | 08:54 AM
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going single turbo, want a good daily driver well, as good as i can get with that much power, and i need to purchase a crank the one that was in my core motor was junk, thanks for the replies keep them coming
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Old Oct 8, 2011 | 09:03 AM
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Please forgive the hijack, Mr. Big what turbo are you running?
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Old Oct 8, 2011 | 10:16 AM
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Originally Posted by Jax326
Please forgive the hijack, Mr. Big what turbo are you running?
he's running the F1R procharger, not a turbo.. Its in his sig
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Old Oct 8, 2011 | 10:38 AM
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I apologize im working the Shakedown at Etown today at Raceway Park so im on mobile, couldn't see the sig
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Old Oct 8, 2011 | 11:31 AM
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How many miles should I get out of a 408 bs a 370?
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