I was wondering if it would be worth the $130 bucks to buy my friends dads ls1 heads to put on my truck when i have allen do the cam swap. What do yall think guys? Are ls1 heads better then 5.3 heads and if so by how much?
I was wondering if it would be worth the $130 bucks to buy my friends dads ls1 heads to put on my truck when i have allen do the cam swap. What do yall think guys? Are ls1 heads better then 5.3 heads and if so by how much?
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.
I THINK THE ARE. THE HAVE THE 2.0 INTAKE VALVE AND FLOW A LITTLE BETTER? THIS IS MY OPINION. I THINK IT IS THE SAME HEAD AS ON THE LQ9 6.OL. I DO NOT KNOW THE CHAMBER SIZE THOUGH?
YOU COULD ALWAYS GET A PORT AND POLISE JOB ON THEM. THAT BRING THE FLOW RATES UP SIGNIFICANTLY.
HEY I STILL NEED A RIDE IN THAT BEAST. I HAD TO LEAVE TOWN EARLY SORRY I DIDN'T CALL FRIDAY.
JAMEST
12 Sec. Club! SOLD
La Viuda negra/ a.k.a. Black Betty
LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
SOLD***
If it will ever stop raining we should try and get together Oh and by the way i got the info on car club. It is at the kroger parking lot and it starts at 730 and ends at 10
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.
<div class='quotetop'>QUOTE(shwarmy @ Oct 16 2006, 09:32 AM) [snapback]69660[/snapback]</div>GOOD. I SAW MY FRIEND AND THEY SAID IT WAS A BIG TURN OUT. HE SAID THEY MOVED IT BACK KROGERS.If it will ever stop raining we should try and get together Oh and by the way i got the info on car club. It is at the kroger parking lot and it starts at 730 and ends at 10
[/b]
JAMEST
12 Sec. Club! SOLD
La Viuda negra/ a.k.a. Black Betty
LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
SOLD***
It all depends. What are the casting #'s of your heads and the LS1 heads.
[1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x
the heads will work but with your bore of 3.77 compared to the 5.7 3.9 the valves will be close to the piston wall. Been there done that lol.
oh yeah your compression will drop as well, your at 9.5.1 and will go to like 9.0.1 close to that anyways.
http://i17.photobucket.com/albums/b9...5831PM-2-1.jpg <--- TimeSlip
RCSB 5.3 N/A 12.31 full boltons,H/C,4.10s,3800 converter. SOLD
04 GTO
Both Tuned By: ME
So your saying that the 5.3's have small valves. I thought they had 2.00/1.55's, I thought it was just the 4.8's that had small valves.
[1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x
5.3 has smaller valves, keep the 4.8/5.3 heads. You'll drop compression, shroud the bore, lose torque, etc.
Still wanna do it?
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
Get them and deck them. I got mine and decked them 0.010 and cut the valve seats and took the humps out of the ports on the valve side. Love them. Retains stock compression and increases flow.
2000scsb silverado, '02 5.3L with Comp Cams custom ground LS1 cam 222/224 112lsa +2deg. 581/581 , '01 LS1 heads decked 0.010" ported, Comp beehive valvesprings, pushrods, shims, pace setter longtubes, no cats, Nelson tuned. AuburnGear Pro series LSD, 4L60E built with 2k rpm stall, corvette servos and raybestos clutches..... Fun enough...... for now
<div class='quotetop'>QUOTE(Chris Ryan @ Oct 19 2006, 10:20 PM) [snapback]70346[/snapback]</div>Get them and deck them. I got mine and decked them 0.010 and cut the valve seats and took the humps out of the ports on the valve side. Love them. Retains stock compression and increases flow.
[/b]
When CC vol decreases, compression rises.
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
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