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2V original NA cam specs

 

Originally we had released NA cam specs considering all of the combinations - 4.6 and 5.4 and NPI and PI. 

After extensive dyno testing we learned that each combination preferred a slightly different cam spec.  We had a few more lobes custom made and went from 5 part numbers to 17 NA part numbers just for PI and NPI heads.  If you bought one of the early specs here is what they were:

 

2V CUSTOM CAMS PART NUMBER
Advertised
0.050 Duration
Lift at valve
Centerlines
LSA
STOCK PI CAMS  (for reference)
242/252
200/209
505/531
114/116
115
           
STAGE 1    - NATURALLY ASPIRATED 253/257 215/218 525/500 110/114 112
STAGE 2    - NATURALLY ASPIRATED
260/265 222/226 525/500 110/112 111
STAGE 2.5 - NATURALLY ASPIRATED
268/269 228/230 550/525 110/112 111
STAGE 3    - NATURALLY ASPIRATED
273/274 233/235 550/525 106/112 109
STAGE 3.5 - NATURALLY ASPIRATED 278/279 238/240 550/525 106/112 109

 

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