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5.3L to 408?

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Old 09-03-2011, 02:50 PM
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Default 5.3L to 408?
Can I make my 5.3L into a 408 stroker?
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Old 09-03-2011, 05:49 PM
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I believe the walls will be too thin. A forged 370 would be a nice option for your 5.3.
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Old 09-03-2011, 06:42 PM
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How do you make a forged 370 out of a 5.3? I am asking, because I am interestred in this build for myself.
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Old 09-03-2011, 06:57 PM
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3.905 bore and a 3.9" stroke is a 374
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Old 09-03-2011, 07:07 PM
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Just make a 383 out of the 5.3 but for the money i dont think its worth it
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Old 09-04-2011, 12:33 AM
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The most i can do with my 5.3 is a 383? how much will i gain with a 383?
I heard i could do a 402 and 408 with mine
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Old 09-04-2011, 06:30 AM
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Originally Posted by renaldo99
The most i can do with my 5.3 is a 383? how much will i gain with a 383?
I heard i could do a 402 and 408 with mine
you need a 6.0 block to go that large
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Old 09-04-2011, 10:36 AM
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You will gain a lot with a 383, that's 58 more cubic inches. Start doing some shopping now; as niff said, it may not be worth it to bore and stroke your current block because you might be better off just buying and swapping in a bigger engine under your current setup. Like a 408 longblock, for instance
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Old 09-04-2011, 04:51 PM
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Where can I buy a block that will work with my setup without doing custom work to make it fit... just a straight swap and all my stuff from my 5.3 will bolt right up
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Old 09-04-2011, 05:38 PM
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any 6.0 block should work if im not mistaken...
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