My current engine is a 383 with dart iron eagle heads and a hydraulic roller cam with unknown specs. I am looking to do a budget upgrade of aluminum heads and a cam. I have checked a lot of magazine 383 buildups and think I have a good combo to get near 450 hp give or take. I wanted some input from the board just to make sure I am on the right track.
The bottom end is getting freshened up but I am unsure of the parts in there. I was told is all good stuff. I am looking at a 64cc aluminum head which should put my compression around 9.8:1.
The heads I was looking at were Blueprint heads 64cc chamber, 195cc Intake Runner, 75cc exh, 2.020/1.600 in. Valves, http://www.summitracing.com/parts/mll-h8002k and Promaxx 64cc chamber, 190 cc aluminum heads http://www.summitracing.com/parts/pmx-2181
The cam i am leaning towards is a comp cams Xtreme Energy Hydraulic Roller advertised Duration 288/294, Lift .520/.540, 110 lobe separation, 2500 - 6000rpm. http://www.summitracing.com/parts/cca-12-433-8
I wanted to go with the bigger cam for the chop but fear that the RPM range would be sluggish at the bottom. the specs are Hydraulic Roller Tappet, Advertised Duration 294/300, Lift .540/.562, 2800-6100 rpms. http://www.summitracing.com/parts/cca-12-443-8
Thanks in advance for the input!
The bottom end is getting freshened up but I am unsure of the parts in there. I was told is all good stuff. I am looking at a 64cc aluminum head which should put my compression around 9.8:1.
The heads I was looking at were Blueprint heads 64cc chamber, 195cc Intake Runner, 75cc exh, 2.020/1.600 in. Valves, http://www.summitracing.com/parts/mll-h8002k and Promaxx 64cc chamber, 190 cc aluminum heads http://www.summitracing.com/parts/pmx-2181
The cam i am leaning towards is a comp cams Xtreme Energy Hydraulic Roller advertised Duration 288/294, Lift .520/.540, 110 lobe separation, 2500 - 6000rpm. http://www.summitracing.com/parts/cca-12-433-8
I wanted to go with the bigger cam for the chop but fear that the RPM range would be sluggish at the bottom. the specs are Hydraulic Roller Tappet, Advertised Duration 294/300, Lift .540/.562, 2800-6100 rpms. http://www.summitracing.com/parts/cca-12-443-8
Thanks in advance for the input!