LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 trick flow heads

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Old 10-21-2008, 10:52 PM
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Default lt1 trick flow heads

Does anyone have flow bench numbers for trick flow heads out of the box non ported compared to the darts. Im just trying to figure out what wond be the best bang for your buck thx
Old 10-22-2008, 10:11 AM
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Default Trick Flow numbers

Airflow Chart for GenX LT1 Street/Strip Cylinder Heads

Lift Value Intake Flow CFM Exhaust Flow CFM
0.100" 51 58
0.200" 136 98
0.300" 191 136
0.400" 230 163
0.500" 253 177
0.600" 254 190


Tests conducted at 28" of water (pressure); exhaust with 13⁄4" pipe.
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Old 10-22-2008, 10:34 AM
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AI's TFS heads are close to 300 cfm's .600.
Old 10-22-2008, 05:12 PM
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So if i were to do a set of out of the box trick flows were would the best place be to order a custom grind cam? Also with those flow numbers what kind of power would i be making?
Old 10-22-2008, 07:14 PM
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We ordered mine bare and with no additional porting and played with different valves and ended up getting them to flow 280 at .550". The head dyno'd decently out of the box but seemed to shine on 150 shot. One guy local to me had one with a mild cam and these heads and on the 150 shot he got 484 rwhp and 640 rwtq. The torque numbers speak loads for what these things do on the gas.
Old 10-22-2008, 09:29 PM
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Was that torque number with a 6 speed or auto?
Old 10-22-2008, 09:33 PM
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6 speed.
Old 10-22-2008, 09:45 PM
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Pretty nice!
Old 10-22-2008, 10:01 PM
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borninatransam what valves did you guys end up using? As far as the custom cam any suggestions
Old 10-22-2008, 10:09 PM
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Mine with swirl polished valves flowed 283cfm (out the box) @.600 - DART PRO 1's
Old 10-22-2008, 11:03 PM
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Originally Posted by 1badzee
Mine with swirl polished valves flowed 283cfm (out the box) @.600 - DART PRO 1's
You got 283 out of 180cc castings? or out of 200cc castings?
That's very nice for only having installed valves.
Old 10-23-2008, 04:41 PM
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Originally Posted by nirvana1221
borninatransam what valves did you guys end up using? As far as the custom cam any suggestions
PM sent. Let me know if I can help anymore.
Old 10-23-2008, 04:42 PM
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Originally Posted by fergymoto
Pretty nice!
Didn't realize that you lived in NC. Are you over on horsepowerjunkies any? If not check it out.
Old 10-23-2008, 05:28 PM
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Haven't been before but I'll check it out sometime.



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