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Cylinder Head Vital Specs - Power Curves

Cylinder Heads Trick Flow Cylinder Heads

This aluminum head from Trick Flow produced 496 lb-ft of torque at 4,000 rpm and 455 horses at 5,300 rpm. With its 195cc intake ports and 215-cfm flow numbers at 0.400-inch lift it was a good match for our 383 small-block test engine. Matched to a similar engine, you can have neck-snapping torque and big power. We went over our budget by $26, but at such a marginal cost, who are we to not test them? Besides, a week of brown-bagging our lunches made up the difference.

CATEGORY 2
MODEL: Trick Flow aluminum, 195cc
PN: 30400001
PRICE: $1026/pair
Weight: 26 pounds each
True measured combustion chamber volume: 64 cc
True measured intake and exhaust port volume: 195 cc; 73 cc
Spring pressure: 115 lbs. on seat; 275 lbs. at 0.500-inch lift
installed height: 1.850 inch
Valve size: 2.02/1.60-inch
Intake flow at 0.400 lift: 215 cfm
Assembled, with guideplates
Airflow
Valve lift.050.100.200.300.400.500.600
Intake Corr test flow29.560.3125173.6215239243
Exhaust Corr test flow184386.5116.7144162175
POWER
Average torque:462 lb-ft
Average horsepower: 408 hp
RPMlb-ftHP
3,300482303
3,400481312
3,500483322
3,600489335
3,700491346
3,800494357
3,900495368
4,000496378
4,100494386
4,200493394
4,300492403
4,400491411
4,500489419
4,600484423
4,700478428
4,800474433
4,900471439
5,000467444
5,100463449
5,200456452
5,300451455
5,400443455
5,500431451
5,600424452
5,700415451
5,800406449
5,900400449
6,000391446
6,100380442


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