Cam selection, cam guru's help
#1
Senior Member
MASTER BUILDER
Thread Starter
Join Date: Oct 2003
Posts: 144
Cam selection, cam guru's help
I am wondering if I have the right cam for my application.
the engine: 436 cid ( 4.165 bore 4" stroke ) with heads that flow 355 cfm intake at .700
cam I have:
erson,
intake lobe l. .450 / 278 duration
exhaust lobe l. .450 / 284 duration
rocker ratio 1.6
106 lobe speperation
Alcohol injection
Drag only 1/4 mile
2350 lb car
gear 4.56 w 30" tire
anybody have any idea?
compression static 14.7-1
the engine: 436 cid ( 4.165 bore 4" stroke ) with heads that flow 355 cfm intake at .700
cam I have:
erson,
intake lobe l. .450 / 278 duration
exhaust lobe l. .450 / 284 duration
rocker ratio 1.6
106 lobe speperation
Alcohol injection
Drag only 1/4 mile
2350 lb car
gear 4.56 w 30" tire
anybody have any idea?
compression static 14.7-1
#2
Senior Member
EXPERT BUILDER
Join Date: Jan 2007
Location: atwood,Ky
Posts: 302
way to small of a cam,my 388 had a comp 670 lift cam with 4/7 swap & it made alot of power. you have more motor than i had.best think to do is to call your favorite cam company tell them what you have & they will set you up.of coarse one of these guys on here could help you to there are some pretty smart fellas on here.good luck.
#3
Senior Member
EXPERT BUILDER
Join Date: Aug 2007
Location: Orient, OH
Posts: 384
I am not a cam guru, but with that cam you are looking at .720 rocker arm lift. I am guessing the duration is at 50. I ran a cam very similar to yours in my 434 in our Super Street Nova and it worked great the car was 2850 pounds and ran a best of 9.44 @ 143 mph with 4.86 gearing...
I hope this is helpful...
I hope this is helpful...