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Thread: When to do P&P and 3 angle valve job?

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  1. #1
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    When to do P&P and 3 angle valve job?

    Im thinking about doing those mods to my truck cause I've heard that they help performance wise.. When should I do it? in a cam swap or when?
    Do they really help a lot? any advice? thanks
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  2. #2
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    whenever you have the heads off, in my opinion you shouldn't get too crazy with port and valve sizes, the motor still needs velocity unless your going FI. Same applies with exhaust, people think you need some back pressure, wrong. You need velocity and you dont get that with a massive pipe, there can be a very fine line. EDIT: The velocity helps pull more air in.
    2006 Silverado
    Little Black Bitch

  3. #3
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    so, if im going N/A, shouldnt do that?
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  4. #4
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    Quote Originally Posted by Felix Arrizon View Post
    so, if im going N/A, shouldnt do that?
    No you can do it, there is just a point where you hit too much, an average port and polish and 3 angle job won't get you near that
    2006 Silverado
    Little Black Bitch

  5. #5
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    Yeah man, you can do it--but I'd deck the heads slightly to bump CR a smidgen. The valve job and PnP will help clean them up and flow better. I say do it!

    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
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    "but I'd deck the heads slightly to bump CR a smidgen."

    What do you mean with that bro??
    Alright.. I might do PnP and 3 angle job in my cam swap... I'll put the pushrods and the valvesprings while I am at..
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  7. #7
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    he means machining the heads down just a little bit, it makes the combustion chamber just a wee bit smaller which bumps up your compression ratio
    2006 Silverado
    Little Black Bitch

  8. #8
    Join Date
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    you have a cam size in mind? this will help decide on what needs to be done, but by all means at lease have the heads milled enough to basically clean them up.
    Simple: 408 on steroids!
    single digits coming soon!

  9. #9
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    Im thinking about the 224... what do you think?
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  10. #10
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    Location
    Arizona
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    or 220 Im not sure about those two..
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

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