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Thread: heads? ls1 or have mine built?

  1. #1
    Join Date
    Feb 2009
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    mississippi
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    Question heads? ls1 or have mine built?

    just like the title seas i have an 04 chevy 5.3L just got it sold my old 13 sec truck to a frined wonted to start on something new should i swap to an ls1 head or build up the stockers
    04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116

  2. #2
    Join Date
    Feb 2007
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    Fort Worth
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    Welcome to the site!

    The 5.3L is a motor than can get into the 13s on bolt ons + cam. With those mods and spray--you can get into the 11s.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  3. #3
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    mississippi
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    yea i was runnin 13.669s with my 01 same motor but im wonted to brake 12s with out spray so i was thinkin a head swap would be in order i have already looked into an ls6 intake swap i no that would help me in the higher rpms but thanks for your input no one is replying to this thread ha ha
    04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116

  4. #4
    Join Date
    Jul 2006
    Location
    College Station, TX
    Posts
    652
    You could by my short block and have it bored and stroked.
    2004 EXC Silverado 6.2L
    Mods:
    6.2L L92, Ported and Polished stage 3 heads, 95mm Throttle Body, 100mm MAF, NA, Pacesetter LT Headers, Magnaflow X-Pipe Muffler, Electric Fans, 160* thermostat, 2" Drop Shackles, Hellwig Sway Bars Front and Rear, Monroe Reflex Shocks, NGK Spark Plugs, AMW Oil Catch Can, 17"x10" wheels on Kuhmo Tires.

  5. #5
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Keep the 5.3L. Do a TBSS LS2 intake, get some 799 heads and have them ported and polished with a 3 angle valve job. With the LS2 intake, you will have a 90mm TB. Of course, do headers, pulleys, a sick cam, a stall, and tranny upgrades.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  6. #6
    Join Date
    Feb 2009
    Location
    mississippi
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    its all in order thanks very much for the input but how about the throttle by wire this is my first trip down that rd. do they make a 90mm etb
    thanks again for all the help
    04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116

  7. #7
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Yes--they make a 90mm DBW TB...

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  8. #8
    Join Date
    Feb 2009
    Location
    mississippi
    Posts
    930
    what size cam do you sugest with ls2 heads
    04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116

  9. #9
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    799 heads....5.3L... You gunna have a torque converter?

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  10. #10
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
    Posts
    2,586
    work over the 5.3 heads. youll lose compression with the ls1 heads.

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

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