DESCRIPTION: Chevy LS2 (243 Castings) heads off a 2007 TrailblazerSS. These heads were ported/polished by Greg Good in Houston, TX along with all the upgrades which include Rev Stainless Steel 2.055" Intake/1.60" Exhaust Valves, Patriot Performance Xtreme Springs (.660" lift), Titanium Retainers, Super7 locks and Viton rubber seals. You can see from below the great flow numbers from these heads. I know flow numbers are not the most important data when evaluating heads, but it is the only data I have. They were on my truck for about 7500 miles before I decided to return to stock. I also have a New set of LS1 Head gaskets that will go with them if you need them. Really need these to move. Please contact me if interested.
ALSO: If you would like a cam as well, I have this one still available and will do a package of $1200 shipped.
Custom Grind Cam (238/242 .605/.610 115 LSA 111 ICL) - LS1TECH
PM or email:
mikeg@tx-ss.com
PICS:
I realize I could have spent more time cleaning them up, but it is what it is.
For more images:
Here are my flow numbers
DATA: Flow numbers for these heads versus published data from other vendors and head styles
These Heads:
Flowed at 28" h2o on SuperFlow 600 at 4.00" Bore
LIFT .100 .200 .300 .400 .500 .550 .600
INT n/a 147 225 279 321 333 337
EXH n/a 126 171 215 237 240 244
Compared to: (from GM High Tech Magazine)
Cylinder Head Testing - GM High Tech Performance Magazine
AFR (2.02/1.60)
LIFT .100 .200 .300 .400 .500 .550 .600
INT 68.6 152.9 217.4 263.9 300.7 318.6
EXH 58.6 115.9 168.8 205.4 219.8 229.9
DART (2.02/1.60)
LIFT .100 .200 .300 .400 .500 .550 .600
INT 66.3 131.1 195.5 232.4 266.6 275.5 261.3
EXH 50 96 138 174.5 196 204.3
EDELBROCK (2.02/1.57)
LIFT .100 .200 .300 .400 .500 .550 .600
INT 64.8 141 197.9 247.4 280.4 302.9
EXH 55.9 105.5 151.9 191.3 207.2 216.8
LIVERNOIS(2.08/1.575)
LIFT .100 .200 .300 .400 .500 .550 .600
INT 66.2 149 215.5 266 305.5 325
EXH 59.5 116.7 158 195.5 215.6 225
TFS (2.04/1.575)
LIFT .100 .200 .300 .400 .500 .550 .600
INT 68.6 147.8 218.9 267 309.7 327.6
EXH 56.0 113.5 175.2 216.6 229.3 238.9
L92 HEADS: (STOCK)
Tested on 4.125 Bore
LS2 Engine L92 Cylinder Head Specs - GM High Tech Performance
LIFT .100 .200 .300 .400 .500 .550 .600
INT 79.2 153 225 276 309.6 323.2 332.2
EXH 57.8 114.4 147.2 170.3 183.1 186 189.5
Scoggin Dickey CNC L92
SD8800 Cylinder Head, L92 CNC Ported, Manley Valves, 0.650" Lift Springs
LIFT .100 .200 .300 .400 .500 .550 .600
INT 69 154 222 266 309 345
EXH 46 100 136 166 189 202
Originally Posted by Rider69
DESCRIPTION: Chevy LS2 (243 Castings) heads off a 2007 TrailblazerSS. These heads were ported/polished by Greg Good in Houston, TX along with all the upgrades which include Rev Stainless Steel 2.055" Intake/1.60" Exhaust Valves, Patriot Performance Xtreme Springs (.660" lift), Titanium Retainers, Super7 locks and Viton rubber seals. You can see from below the great flow numbers from these heads. I know flow numbers are not the most important data when evaluating heads, but it is the only data I have. They were on my truck for about 7500 miles before I decided to return to stock. I also have a New set of LS1 Head gaskets that will go with them if you need them. Really need these to move. Please contact me if interested.
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