Hey guys, I'm posting below the specs from the Edelbrock heads that I was thinking of using in my 383 rebuild. Not knowing what the numbers mean vs the stock heads makes me clueless as to whether this is worth the $1,400 investment or just having my stock heads machined?
Can you guys look at these numbers and let me know why the Edelbrock Performers are better (aspiration, horsepower, torque, etc.) I don't know what the numbers are of the stock heads and I think if it's explained to me that way, I'll get it.
Thanks, John.
Combustion chamber volume 84cc & 88cc
Intake runner volume 210cc
Exhaust runner volume 70cc
Intake valve diameter 2.140"
Exhaust valve diameter 1.81"
Valve stem diameter 11/32"
Valve guides Manganese bronze
Deck thickness 5/8"
Valve spring diameter 1.55"
Valve spring maximum lift .600"
Rocker stud N/A
Guideplate N/A
Pushrod diameter 3/8"
Valve angle 15°
Exhaust port location Stock
Spark plug fitment 14mm x 3/4 reach, gasket seat
Made In USA
Can you guys look at these numbers and let me know why the Edelbrock Performers are better (aspiration, horsepower, torque, etc.) I don't know what the numbers are of the stock heads and I think if it's explained to me that way, I'll get it.
Thanks, John.
Combustion chamber volume 84cc & 88cc
Intake runner volume 210cc
Exhaust runner volume 70cc
Intake valve diameter 2.140"
Exhaust valve diameter 1.81"
Valve stem diameter 11/32"
Valve guides Manganese bronze
Deck thickness 5/8"
Valve spring diameter 1.55"
Valve spring maximum lift .600"
Rocker stud N/A
Guideplate N/A
Pushrod diameter 3/8"
Valve angle 15°
Exhaust port location Stock
Spark plug fitment 14mm x 3/4 reach, gasket seat
Made In USA