Vortecpro Mark Jones 496 Big Block Chevy
641 HP/671 TQ
4 Bolt Main
Holley 850
Performer RPM Air Gap
MSD Pro Billet Distributor
049 Heads
2.25” Intake 1.88” Exhaust
Isky Hydraulic Roller
(238/248, .578/.608)
Johnson Lifters
Scorpion Rockers
I’m selling my Mark Jones built 496 Big Block Chevy. This engine was shipped to me in spring of 2023 and has been kept in my dry attached garage. It has been broken in and run on the dyno. Mark told me that the engine ran out of air and that a bigger carb could get more power. But for my needs he just said to leave it alone. I’m not dying to sell this, my project is just moving slow.
