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03-17-2012, 11:00 PM
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#1 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Camshaft ? 5.3
The 5.3 is in the stand, & I am thinking about the parts to "collect" for the build. This trip, I am looking more for tork/fuel economy(its not fun to drive if it dont pass a gas pump)
 This 5.3 will be backed with a 6 spd Richmond OD, & 3.42 gears(29" tires). What do you guys reccomend, in a stock 5.3, that will idle with a slight hint of lope, & pull to about 55-5700 when needed? crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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03-17-2012, 11:14 PM
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Camshaft ? 5.3
maybe something in the 21x/22x @ .050 with .550 lift or so on 112-114 LSA?
my big headed 6.0 has a 223/231-.610/.617-112 in it and makes gobs of torque
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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03-18-2012, 03:11 AM
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#3 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: Camshaft ? 5.3
Would you go Z06, or the ls hot cam? I want this little "mill", to pull its stones way down south, & hard through the mid range? crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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03-18-2012, 09:35 AM
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#4 |
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Registered User
Join Date: Jan 2012
Location: Virginia Beach, VA
Posts: 282
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Re: Camshaft ? 5.3
I"ll be stuffing a COMP bumpstick in my 5.3. P/N 54-408-11
Specs: 206/212 .515/.522 112LSA With a truck intake, this cam will give stupid torque, decent midrange, pull to 5800, idle just a little choppy, and give good mileage. I'm getting mine for all of those reasons. (assumptions of power delivery made with CamQuest software) |
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03-18-2012, 01:20 PM
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Camshaft ? 5.3
....yeah I could have been a bit long on the duration.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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03-18-2012, 10:23 PM
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#6 |
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Gone Fishing
Join Date: Aug 2005
Location: Fort Worth, Texas 76135
Posts: 12,361
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Re: Camshaft ? 5.3
I went with the 02 z06 cam
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68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop  Frame of resto has been started2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616 |
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03-19-2012, 12:06 PM
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#7 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: Camshaft ? 5.3
Thanks to all for the info .....any issues in pushrod lenght, or valve to piston clearance issues in the .525-.550 range on the lift? crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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03-19-2012, 01:36 PM
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#8 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Camshaft ? 5.3
just upgrade your springs....ptv should be OK.
p-rods should be 7.400" stock length..upgrade to chromemoly/hardened if you can
__________________
Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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03-19-2012, 05:27 PM
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#9 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: Camshaft ? 5.3
Thanks again
 I think this will be a fun project! crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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03-19-2012, 08:15 PM
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#10 |
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Registered User
Join Date: Sep 2011
Location: Troy, AL
Posts: 189
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Re: Camshaft ? 5.3
Z06 cam will need longer pushrods; I believe it is a reduced base circle cam. Yes stock pushrod length is 7.4", pushrod change required for any cam other than stock. TR220 is pretty sweet, lopes great as well. The Texas crowd loves the TR220 and TR224.
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1979 Custom Deluxe C10 SWB Fleetside Help encourage me in my build. LS 5.3 swap in progress! |
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03-19-2012, 08:38 PM
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#11 |
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Registered User
 
Join Date: Jan 2010
Location: Wataga,IL
Posts: 666
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Re: Camshaft ? 5.3
many guys love the Z06 cam in a 5.3, especially for boosted apps
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66 LWB/BBW work in progress 68 Camaro SS bigger work in progress 95 Roadmaster Wagon 12.36 @ 107.74 99 Hayabusa 8.72 @ 162 00 Hayabusa 9.33 @ 153 |
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03-19-2012, 09:45 PM
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#12 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Camshaft ? 5.3
I find it hard to believe the ZO6 cam with 204/218@ .050 duration and .550 lift has a reduced base circle. And GMPP catalog doesn't mention need for p-rods... but does say springs need upgrade.
heck....my Comp LSr series with 223/231 @.050 .610/.617 lift and it runs chromemoly 7.40's and .650 springs.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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03-19-2012, 10:17 PM
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#13 |
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Registered User
Join Date: Sep 2011
Location: Troy, AL
Posts: 189
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Re: Camshaft ? 5.3
Ah, well then 68GMC, I will note that! Thanks for the correction, I don't want to give false info!! I have just always seen that when changing cams, always go for springs and pushrods.
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1979 Custom Deluxe C10 SWB Fleetside Help encourage me in my build. LS 5.3 swap in progress! |
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03-19-2012, 10:53 PM
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#14 |
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A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,921
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Re: Camshaft ? 5.3
Pushrod length will change with a smaller base circle cam, milled heads, or some styles of lifters. Mild cam should not require pushrod length to change in most cases. Hardened is a good idea when upping the lift...
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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03-19-2012, 11:49 PM
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#15 |
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Registered User
Join Date: Sep 2011
Location: Troy, AL
Posts: 189
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Re: Camshaft ? 5.3
Yes. I didn't mean to imply you needed LONGER pushrods with all cam swaps, just hardened ones. Sorry for the confusion.
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1979 Custom Deluxe C10 SWB Fleetside Help encourage me in my build. LS 5.3 swap in progress! |
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03-20-2012, 01:26 AM
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#16 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: Camshaft ? 5.3
Lots of good info
keep it rollin....this old man is soakin it like a sponge! thanks again to all you guys....crazyL
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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