CNC LS9 Cylinder Head 19328743
02-20-2019, 02:11 PM
#1
CNC LS9 Cylinder Head 19328743 Hi Guys
What do you think of those head from Chevrolet : 19328743 - Chevrolet Performance CNC LS9 Cylinder Head ?
I own a L96, putting an 408 rotating assembly stroker in it this winter, and planning a Vortech or Procharger on it later on, hoping 820-850 rwhp
Car is a 71 Chevelle used mostly in street
I had the choice of sending my stock 823 to head shop, having them ported and valve upgrade, but I saw those LS9 head in Summit for around 980$ each
Here what Chevy claim about those head , wondering if it worth it to go with them instead of upgrade mine ???
• Special A356T6 aluminum Roto-cast head casting for greater strength. The mold is rotated during production to create a more solid casting that virtually eliminates porosity
• Reinforced webbing and thicker deck (for minimal distortion) makes it an excellent choice for supercharged and turbocharged engine combinations
• CNC-ported for approximately 10 percent greater airflow (intake side) than the regular-production cylinder head (similar to LS3 CNC-ported head P/N 88958758)
• As-cast 66.5cc combustion chamber volume
• Fully assembled with production LS9 2.165" (55mm) titanium intake valves and sodium-filled 1.590" (40mm) exhaust valves; and beehive-type valve springs
What do you think of those head from Chevrolet : 19328743 - Chevrolet Performance CNC LS9 Cylinder Head ?
I own a L96, putting an 408 rotating assembly stroker in it this winter, and planning a Vortech or Procharger on it later on, hoping 820-850 rwhp
Car is a 71 Chevelle used mostly in street
I had the choice of sending my stock 823 to head shop, having them ported and valve upgrade, but I saw those LS9 head in Summit for around 980$ each
Here what Chevy claim about those head , wondering if it worth it to go with them instead of upgrade mine ???
• Special A356T6 aluminum Roto-cast head casting for greater strength. The mold is rotated during production to create a more solid casting that virtually eliminates porosity
• Reinforced webbing and thicker deck (for minimal distortion) makes it an excellent choice for supercharged and turbocharged engine combinations
• CNC-ported for approximately 10 percent greater airflow (intake side) than the regular-production cylinder head (similar to LS3 CNC-ported head P/N 88958758)
• As-cast 66.5cc combustion chamber volume
• Fully assembled with production LS9 2.165" (55mm) titanium intake valves and sodium-filled 1.590" (40mm) exhaust valves; and beehive-type valve springs
02-20-2019, 03:28 PM
#2
ModSquad
iTrader: (6)
Personally I think you’d be happy with the heads you currently have. They are capable of big power and flow very well.
