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05-13-2016, 01:25 AM
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#1 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 5.3L to 383 stroker
Depending on what kind of cam it ends up with, your dynamic compression will change a bit. The milling will decrease it a bit, but depending how much the chambers are worked, you might gain volume there. I'm assuming this is supposed to stay a pump gas truck?
Do you have any #'s on the heads (or who's heads they are)? What about a rough idea of cam? Between that and how high you plan on spinning, the #'s could be all over the place. I don't think in the neighborhood of 550 would be out of the question provided your willing to spin it a little.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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05-13-2016, 07:17 AM
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#2 |
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Registered User
Join Date: Apr 2010
Location: Newcastle, OK
Posts: 1,344
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Re: 5.3L to 383 stroker
The heads are OE 243/799 castings that I am having ported. Pump gas is definitely the plan. Plans are to spin it up to about 7k.
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05-13-2016, 06:01 PM
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#3 | |
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Registered User
Join Date: Feb 2012
Location: Southern Ohio
Posts: 292
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Re: 5.3L to 383 stroker
Quote:
They all have killer CNC programs for that factory casting. On motor with those heads on a 383 LS, I'd say 450rwhp would be a a piece of cake on any dyno. Torque probably in the same range, near 450 at the tire.
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1970 C10 Turbo LM7 5.3/LS6 cam PT7675/4L80E/Holley Dominator EFI/E85 Moser 9" 3.25/4 wheel discs 11.16@121.07 |
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