cam debate
Thread Starter
Cruising
Joined: Sep 2009
Posts: 12
Likes: 0
cam debate
i e am building a 350 l82 i am getting 180 heads with 64cc flat pistons want advice should i get the 268h or the 270 h cam want to be able to run the lights vac but i also want to have the right combination .
Melting Slicks
Joined: Jun 2009
Posts: 2,709
Likes: 3
From: Savannah GA
Small runners won't see the benefit from a bigger cam. A 180cc runner will only flow so much air... a cam with large lift, big duration and radical overlap will cause airflow; read driveability problems because of poor flow and valve timing match to the heads. In short, it will run like sh..... .
Race Director
Joined: Mar 2003
Posts: 11,608
Likes: 780
From: Eustis ( Area 51 Bat Cave ) Fl
Small runners won't see the benefit from a bigger cam. A 180cc runner will only flow so much air... a cam with large lift, big duration and radical overlap will cause airflow; read driveability problems because of poor flow and valve timing match to the heads. In short, it will run like sh..... .
Too Many people who wanna play "kid racer" over cam and or over carb their cars....how will you be using the car?
Burning Brakes
Joined: Oct 2007
Posts: 946
Likes: 0
From: Lake Geneva WI
I've got an L48 that was bone stock. Thanks to the lefty nutjobs and their greener oil, the cam lobes wore down. I decided to go with an L82 cam not too racy, but a bit more beefy and powerful IMO. Only trouble was when it came in it appears to be a bit more racy, so we're still not sure if its the right cam. In the end, I am still happy with the performance and idle. I got a Speed-Pro Sealed Power CAM. CS-1095R.
.50 CAM Lift SAE J604
Intake 224 291 .300 .450 114 HYD
Exhaust 224 287 .307 .460 114
I now use 15W40 Diesel Oil.
Runs like a dream!
.50 CAM Lift SAE J604
Intake 224 291 .300 .450 114 HYD
Exhaust 224 287 .307 .460 114
I now use 15W40 Diesel Oil.
Runs like a dream!
Racer
Joined: Sep 2008
Posts: 434
Likes: 1
From: Charlotte NC
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Abby Normal
Joined: Dec 2001
Posts: 53,444
Likes: 92
From: Press "2" for English
don't think there's enough difference between the two to worry about, but given that choice i would go with the 270.
as others have said, go with the roller. i know it's a big price hit, but it's cheaper than rebuilding motors every few years and you'll pick up 20-30hp with a similar sized cam.
as others have said, go with the roller. i know it's a big price hit, but it's cheaper than rebuilding motors every few years and you'll pick up 20-30hp with a similar sized cam.
