Bbc 820 Heads. Imo the 820 is the better base to start considering the chamber size and with. Web an 820 bbc head is a good head when it's reworked especially the exhaust short side radius, with bigger valves.
Bbc 049 oval port heads
Imo the 820 is the better base to start considering the chamber size and with. 320 series with 320cc intake ports, 119cc combustion chambers,. Web after full upgrades with valves/porting it's probably a toss up, the 781/049 are more plentiful so maybe cheaper too. Web what are the top promaxx performance big block chevy aluminum cylinder heads? When you are assembling an engine, one of the worst things you can do. Web these cylinder heads deliver great throttle response and power from 1,500 to 6,500 rpm. Web an 820 bbc head is a good head when it's reworked especially the exhaust short side radius, with bigger valves. For me if i were to build a 396/402 i would use a set of 360 casting peanut port. At $1,986.60 a pair, they are great upgrade. The three most popular bbc promaxx heads include the following:
At $1,986.60 a pair, they are great upgrade. 320 series with 320cc intake ports, 119cc combustion chambers,. For me if i were to build a 396/402 i would use a set of 360 casting peanut port. Web after full upgrades with valves/porting it's probably a toss up, the 781/049 are more plentiful so maybe cheaper too. Imo the 820 is the better base to start considering the chamber size and with. At $1,986.60 a pair, they are great upgrade. Web an 820 bbc head is a good head when it's reworked especially the exhaust short side radius, with bigger valves. Web these cylinder heads deliver great throttle response and power from 1,500 to 6,500 rpm. The three most popular bbc promaxx heads include the following: Web what are the top promaxx performance big block chevy aluminum cylinder heads? When you are assembling an engine, one of the worst things you can do.
