5.3 cam for stock converter - The 1947 - Present Chevrolet & GMC Truck Message Board Network

robert_63 · 05-13-2012, 09:52 PM

Hey guys just got my 5.3 today a 2001 from Tahoe complete with trans and all wiring oil cooler radiator the whole 9 yards and all wiring under hood and fuse block at an awesome price too! Can't wait to install in my 85 c10. Im hoping my budget will allow for a cam swap I am wanting a noticeable lumpy idle but would like to run stock rocker arms and stock converter for now. Any cam suggestions out there I will be running the Efi with the truck manifold
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68GMCCustom · 05-13-2012, 10:31 PM

Just wait until you can do it right...you know the cam, new higher lift/higher seat pressure valve springs, chrome moly pushrods, new valve seals...I think you'll find that 5.3 to have plenty of punch to get you going. Not only that....you'll have less to troubleshoot on your initial install... just in case it doesn't going perfectly smoothly.

When I built my 6.0L 1st go round with a carb all went well...having a few issues getting the efi going tho.

gringoloco · 05-15-2012, 08:47 AM

If you want a rumbly idle with a stock converter, check out the smallest Comp Thumpr-- just don't expect it to be terribly well mannered...
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**LEEVON** · 05-15-2012, 09:59 AM

Comp 212/218 .522/.529 on 111 or 110, pushrods, LS6 springs and you're done.

OneOffStroker · 05-15-2012, 10:13 AM

As always, I will reccommend the COMP 54-408-11 cam. With a truck and stock converter, I can only assume you want good street manners and don't need max HP at 6000+ RPM, but would rather have usable torque.
You will most likely get a ton of replies to get the LS6 cam or GM Hot cam. Personally, I think those cams will fall flat on their faces with the truck intake. If you go with the COMP that I listed (or similar), you will have mountains of torque with a truck intake, and shouldn't need to change your valvetrain, because lift is fairly mild.
Go to COMP's website and use their CamQuest tool. You can plug in your engine info, and it will give presumed dyno numbers for their cams.

Shon · 05-21-2012, 08:31 AM

Going to be hard to get the sound you want with stock TC. I am told a 224 intake duration is the biggest you can go with the stock TC, I am tempted to try it but probably will stick to the 218 cam I have here....

05-13-2012, 09:52 PM	#1
robert_63 Registered User Join Date: Jul 2011 Location: mexia texas Posts: 35	5.3 cam for stock converter Hey guys just got my 5.3 today a 2001 from Tahoe complete with trans and all wiring oil cooler radiator the whole 9 yards and all wiring under hood and fuse block at an awesome price too! Can't wait to install in my 85 c10. Im hoping my budget will allow for a cam swap I am wanting a noticeable lumpy idle but would like to run stock rocker arms and stock converter for now. Any cam suggestions out there I will be running the Efi with the truck manifold Posted via Mobile Device

05-13-2012, 10:31 PM	#2
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 5.3 cam for stock converter Just wait until you can do it right...you know the cam, new higher lift/higher seat pressure valve springs, chrome moly pushrods, new valve seals...I think you'll find that 5.3 to have plenty of punch to get you going. Not only that....you'll have less to troubleshoot on your initial install... just in case it doesn't going perfectly smoothly. When I built my 6.0L 1st go round with a carb all went well...having a few issues getting the efi going tho. __________________ 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

05-15-2012, 08:47 AM	#3
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: 5.3 cam for stock converter If you want a rumbly idle with a stock converter, check out the smallest Comp Thumpr-- just don't expect it to be terribly well mannered... Posted via Mobile Device __________________ -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

05-15-2012, 09:59 AM	#4
LEEVON Moderator Join Date: Jul 2006 Location: Ozark, MO Posts: 4,888	Re: 5.3 cam for stock converter Comp 212/218 .522/.529 on 111 or 110, pushrods, LS6 springs and you're done. __________________ '20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids

05-15-2012, 10:13 AM	#5
OneOffStroker Registered User Join Date: Jan 2012 Location: Virginia Beach, VA Posts: 282	Re: 5.3 cam for stock converter As always, I will reccommend the COMP 54-408-11 cam. With a truck and stock converter, I can only assume you want good street manners and don't need max HP at 6000+ RPM, but would rather have usable torque. You will most likely get a ton of replies to get the LS6 cam or GM Hot cam. Personally, I think those cams will fall flat on their faces with the truck intake. If you go with the COMP that I listed (or similar), you will have mountains of torque with a truck intake, and shouldn't need to change your valvetrain, because lift is fairly mild. Go to COMP's website and use their CamQuest tool. You can plug in your engine info, and it will give presumed dyno numbers for their cams. __________________ 1972 C10 "Shop Truck" Build - EFI, 5-speed, Posi, and Patina http://67-72chevytrucks.com/vboard/s...d.php?t=834292 1957 Chevy pickup - Twin Turbo 5.3/NV3500, Jag IFS & IRS, AirRide http://67-72chevytrucks.com/vboard/s...d.php?t=606987 Check me out on YouTube - "Tiny Garage Fabrication" http://www.youtube.com/oneoffstroker

05-21-2012, 08:31 AM	#6
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: 5.3 cam for stock converter Going to be hard to get the sound you want with stock TC. I am told a 224 intake duration is the biggest you can go with the stock TC, I am tempted to try it but probably will stick to the 218 cam I have here.... __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap

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