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Thread: First LS Build
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08-24-2012, 11:12 PM #1
- Join Date
- Apr 2012
- Location
- Oklahoma
- Posts
- 11
White- 2009 Silverado
First LS Build
Plannning my first LS build. Building a carb'd 6.0 for my nephews 59 Chev Cheyenne driver. Planning on building him a budget hot rod motor,
Here's what I have:
2-6.0 Truck, long blocks with 371 heads. One with an attached auto trans. I set of new Comp Beehive left over from a previous SBC build.
The plan:
1. Pick the best looking long block. Do a hone job and a basic rebuild.
2. Pull the heads. Get a basic port job and freshen-up. Add the beehives. Flow ~285@,.500
3. Add a cam upgrade.
4. Carb and Eddie dual plane inntake.
5. MSD controller.
Questions:
a. Should I have new bolts installed on the rods? Or just by budget capscrew I-beams from SCAT?
b. Want a cam that will work well for a heavy truck, stock exhaust w/dual exhasut and maybe a 2500 converter. RPM at 5.5K max and a good flat torque curve. Suggestions?
c. Should I buy the trunion upgrade for the rocker arms from Comp?
Thanks in advance for your advice.
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08-25-2012, 06:28 AM #2
- Join Date
- Apr 2010
- Location
- Alabama
- Posts
- 3,625
Black/ Silver- 98 TA WS6/ 01 C5 Corvette
I am pretty sure you can't use valve springs from a sbc on a LSx engine....correct me.if I am wrong. I would contact Texas Speed, Vengeance Racing or some other performance shop and tell them your plans, they will definitely point you in the right direction. I don't personally have the trunion upgrade but I have heard great things about it.
Last edited by 98TransAmWs-6; 08-25-2012 at 06:32 AM.
1998 Trans Am WS6 - Phantom
421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
(Coming Soon) BMR DSL, UMI TQ Arm
421 LQ9 14.8:1 on E85 Build/
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08-25-2012, 07:14 AM #3
- Join Date
- Apr 2012
- Location
- Oklahoma
- Posts
- 11
White- 2009 Silverado
Thanks for the input. I'll make a decision on the trunion deal. Maybe try to save a little $$$'s there. Certainly not trying to this a serious S/S deal.
I was under the impression, maybe wrongly so, the the Comp#26918 Beehives would work on a LS1 head. Will someone straighten me out on this? The seat pressure is 130# @1.800" and they should be good for ~.600 lift if set-up properly. great for the hyd.roller cams I've used on SBC's.
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08-25-2012, 07:28 AM #4
- Join Date
- Apr 2012
- Location
- Oklahoma
- Posts
- 11
White- 2009 Silverado
MTW. I've been looking at cams specs. Look's to me like the Tx Speed 220R Sleeper might work well for this deal. What do you guys think?
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08-25-2012, 07:31 AM #5
- Join Date
- Apr 2010
- Location
- Alabama
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- 3,625
Black/ Silver- 98 TA WS6/ 01 C5 Corvette
Okay so I was actually wrong. I thought comps valve springs where sbc or ltx or lsx specific. Meaning I didn't think they were interchangeable, which at least those springs are.
Well depends on your goals, are you looking for high hp #s? You could also do the 228r and get the lower lsa to bring the power band lower down in the rpms, if that is where you want it. I think that would be great. But it depends how much power you want, if it were me I would go bigger but then again I am going with a 240/244 cam.Last edited by 98TransAmWs-6; 08-25-2012 at 07:37 AM.
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08-25-2012, 06:22 PM #6
How many miles on the donor engines? May not need to be tearing it down as the LS platform generally goes much further than a SBC while showing little to no wear. Lots of guys on here north of 120,000 miles and still routinely flogging them at the track.
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