Blaster Engine Blaster Engine Aggresive portwork This is an aggresive portjob for a stock stroke blaster 169354121 Transfer ports Cleaned up transfer ports 169354122 Triple Exhaust Ports Aggresive setup for a stock stroke blaster engine. Triple exhaust ports offer more exhaust port area without sacrificing ring life. Great modification to basically any blaster. 169354204 Engine assembly +4mm Hot Rods stroker crankshaft installed. Rechambered head and aggresive portwork. 169354635 Triple exhaust ports Aggresive setup for a +4mm stroked blaster engine. 169354636 +4mm Blaster Porting Pics don't do it justice. Looks way better in person. 172468203 Stock vs Redesigned Head 172468415