Something I read, Is it true?
#1
Member
MASTER JOURNEYMAN
Thread Starter
Join Date: May 2003
Posts: 35
Something I read, Is it true?
I was reading a magazine, a few months ago, in which they have a performace Q & A section and I came across something that I wasn't too sure about. A reader wrote in looking for advice on picking a camshaft and gave some specs on his motor. Here they are:
388ci small block chevy with a 3.75" stroke, 6" H-beam rods,and forged 10:1 Keith Black pistons, topped off with heads wtih 200 cc runners and 0.570" max lift, a shaft rocker system with 1.6:1 intake and 1.5:1 exhaust rockers and a Edelbrock RPM Air Gap intake.
The editor replied with suggesting a Crane Powermax cam (F-280-2), duration: 252/260 degrees at 0.050" lift, 0.536/0.554 inch max lift. He also suggested to switch to a single plane intake. Now here is the part that I am not sure I believe. He said, "Your 388 should easily make 580-plus horsepower..."
Now I don't know much but from all the stuff I have seen 580 hp seem a bit high. Please let me know what you guys think.
388ci small block chevy with a 3.75" stroke, 6" H-beam rods,and forged 10:1 Keith Black pistons, topped off with heads wtih 200 cc runners and 0.570" max lift, a shaft rocker system with 1.6:1 intake and 1.5:1 exhaust rockers and a Edelbrock RPM Air Gap intake.
The editor replied with suggesting a Crane Powermax cam (F-280-2), duration: 252/260 degrees at 0.050" lift, 0.536/0.554 inch max lift. He also suggested to switch to a single plane intake. Now here is the part that I am not sure I believe. He said, "Your 388 should easily make 580-plus horsepower..."
Now I don't know much but from all the stuff I have seen 580 hp seem a bit high. Please let me know what you guys think.
#5
Senior Member
RACING JUNKIE
Join Date: Jul 2007
Location: Independence, Missouri
Posts: 1,181
I agree with you guys, I've got a 406, about 13-1 on alchy, single pattern flat tappet cam .525 lift, 250 dur. at .050 lift. I doubt that its making 450 hp. at the flywheel. And yeah, I know that aint enough cam.