400hp on 5.3?
05-21-2010, 02:48 PM
#11
All depends on how well the engine has been taken care of. I would rather have a 150,000 mile engine with regular oil changes and regular maintenance by a meticulous owner than one with half as many miles that was beat on and used cheap oil and cheap filters and changed when the owner felt like it.
05-21-2010, 03:04 PM
#12
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https://www.performancetrucks.net/fo...d.php?t=462829
All depends on how well the engine has been taken care of. I would rather have a 150,000 mile engine with regular oil changes and regular maintenance by a meticulous owner than one with half as many miles that was beat on and used cheap oil and cheap filters and changed when the owner felt like it.
All depends on how well the engine has been taken care of. I would rather have a 150,000 mile engine with regular oil changes and regular maintenance by a meticulous owner than one with half as many miles that was beat on and used cheap oil and cheap filters and changed when the owner felt like it.
05-21-2010, 08:05 PM
#13
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Im with the rest of these guys 400hp "flywheel" is not too tough man, but if you had an L33 like Trever1t with the upgraded CR and better heads it would take alot less.... Thats why i went with my "Iron" L33 5.3 with 4.8 flat tops and 243 heads to try to squeeze out 400hp with a baby cam and bolt ons. Hope to have this 4.8 out and the new 5.3 soon
Last edited by kazfan30; 05-21-2010 at 08:26 PM.
05-22-2010, 12:08 AM
#14
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well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
05-22-2010, 12:29 AM
#15
well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
05-22-2010, 12:37 AM
#16
well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
05-22-2010, 12:37 AM
#17
well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
05-22-2010, 06:57 AM
#18
well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
Not even a 6.0 with those mods would make that rwhp!
05-22-2010, 09:08 AM
#19
well i have my 5.3 engine with the xr275hr cam, 3000 stall, shorty headers, underdrive pulley, cold air intake, helix spacer, light wieght driveshaft, original tranny, g80 with 342 gears and a custom tune from down south texas, and i am making 456rwhp and my torque was 479... i think it pertty dam good for a 5.3....... i have a couple more mods that i will be adding...
i really gotta see this
i'm barely knocking on 500 to the wheels on a loaded 6.0
