420 CNC Windjammer Porting

Retail Price: $1,600.00

Your Estimated Price: $0.00

420 CNC Windjammer Porting For Hemi/Wedge Big Block Engines

168cc Ex. Volume

84cc Chamber

500cfm @ 900 Lift

Recommended For Under 600″

SKU: PRE-CNC-420 Categories: ,


  • Recommended minimum 4.500 bore, must use Indy intake or sheet metal, and Predator exhaust flanges. Serious pro street and drag race applications, large lift roller cam preferred. 2.400 x 1.840 valve size.


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