COMPETITION PRODUCTS

800.233.0199
competitionproducts.com

At $880 the Competition Products cylinder head is the most economically priced aluminum head we tested, and the power numbers ran in at 470 lb-ft of torque at 4,100 rpm and 409 horsepower at 5,600 rpm. These heads produced good mid-range power.

CATEGORY 2
MODEL: Competition Products, aluminum 180cc
PN: 300102
PRICE: $880/pair
Weight: 25 pounds each
True measured combustion chamber volume: 67 cc
True measured intake and exhaust port volume: 195 cc; 60 cc
Spring pressure: 115 lbs. on seat; 275 lbs. at 0.500-inch lift
installed height: 1.850 inch
Valve size: 2.06/1.60-inch
Intake flow at 0.400 lift: 194 cfm
Assembled, with guideplates
Airflow
Valve lift.050.100.200.300.400.500.600
Intake Corr test flow2958.8112152194231256
Exhaust Corr test flow23.150.191.5122.3152167172
POWER
Average torque:428 lb-ft
Average horsepower: 377hp
RPMlb-ftHP
3,200450274
3,300451283
3,400453293
3,500458305
3,600464318
3,700468330
3,800470340
3,900469349
4,000469357
4,100470367
4,200468374
4,300464380
4,400462387
4,500457391
4,600453397
4,700447400
4,800441403
4,900436407
5,000428407
5,100422410
5,200416412
5,300408411
5,400400411
5,500390409
5,600384409
5,700373405
5,800362400
5,900353397
6,000345394
6,100335389