worth porting heads?
worth porting heads? Hey everyone!
Will it be worth porting my heads for the following combo. Will be milling them as well .010 or .020 to get the compression up.
Lq4 4.005 forged mahle pistons
Stock crank
Scat 6.125 forged rods
L92 heads w/ lunati dual valve springs
Stock valves
Custom ground donkey dick of a cam
Ported Vic jr intake w/ accufab 4 brrl TB
42# inj
Backed by a th 400 n 3500 stall.
Will it be worth porting my heads for the following combo. Will be milling them as well .010 or .020 to get the compression up.
Lq4 4.005 forged mahle pistons
Stock crank
Scat 6.125 forged rods
L92 heads w/ lunati dual valve springs
Stock valves
Custom ground donkey dick of a cam
Ported Vic jr intake w/ accufab 4 brrl TB
42# inj
Backed by a th 400 n 3500 stall.
Last edited by firefighting1101; Mar 18, 2014 at 01:58 PM. Reason: add information
Yes, porting will net you a whole bunch of power especially if you got a big *** cam. And it won't just be at the top of the RPM range, but all the way up from idle which will help get the car going with a big cam that's inefficient at that point.
Intake Duration - ID 277 227 151 13017R LSL lobe .614"
Exhaust Duration - ED 285 235 158 13019R LSL lobe .621"
Lobe Center Angle - LSA 113 113 113
Intake Centerline - ICL 109 109 109
Intake Valve opens - IVO 29.5 4.5 -33.5 BTDC (- indicates ATDC)
Intake Valve closes - IVC 67.5 42.5 4.5 ABDC
Exhaust Valve Opens - EVO 79.5 54.5 16 BBDC
Exhaust Valve Closes - EVC 25.5 0.5 -38 ATDC (- indicates BTDC)
Exhaust Centerline - ECL 117 117 117
Overlap 55 5 -71.5 degrees
Intake Duration - ID 277 227 151 13017R LSL lobe .614"
Exhaust Duration - ED 285 235 158 13019R LSL lobe .621"
Lobe Center Angle - LSA 113 113 113
Intake Centerline - ICL 109 109 109
Intake Valve opens - IVO 29.5 4.5 -33.5 BTDC (- indicates ATDC)
Intake Valve closes - IVC 67.5 42.5 4.5 ABDC
Exhaust Valve Opens - EVO 79.5 54.5 16 BBDC
Exhaust Valve Closes - EVC 25.5 0.5 -38 ATDC (- indicates BTDC)
Exhaust Centerline - ECL 117 117 117
Overlap 55 5 -71.5 degrees
Intake Duration - ID 277 227 151 13017R LSL lobe .614"
