Keep it on the small side something like 202-207 at .050" on the intake and around 210 or so on the exhaust with around .450 lift.
You think i can go that big. I was thinking about the same on duration. But lift i wasn't sure. I didn't think i could go that big and still have a street car??!Keep it on the small side something like 202-207 at .050" on the intake and around 210 or so on the exhaust with around .450 lift.
Do you know what RPM the engine is turning at 70mph on the hwy ?I have a 64 impala with 355 gears in rear. And a 700r4 transmission. With a 283 bored 40 over under the hood. I have 305 heads and somewhere close to 9.7:1 compression.
I'm looking for advice on a cam. I am looking for more of a highway car. 70 mile an hr all day long. Any ideas would be helpful thanks in advance!!
I'm with canuc. Probably 2250rpm. And I'm running with a flat tappet cam.Do you know what RPM the engine is turning at 70mph on the hwy ?
You can't run too much duration with that small CID engine.
We would normally be around something like this for a hydraulic roller:
Cam#: SBC, HR64325-66316-110
.487"/.474" Valve Lift, w/1.5 rockers
With the cruising RPM that low, I would go hydraulic flat tappetI figured [email protected] in od . If wanting to reto-fit for hr a stock vortec cam would work good .
I think the 256 super cam is on a 112 that i was looking at. I definitely don't want too choppy. I have poer brake and steering. Cam king said 110 for low rpm cruising. 112 a little too lazy for od?Fwiw my .02 , Cam Kings custom flat tappet would be very smooth idle and slightly more efficient at cruise in od . Isky 256 with 108 lsa would have a mild chop at idle with good torque off idle and at cruise with stronger mid and possibly +20 advertised prox 500 rpm higher peak .
Ok thanks!That's why they started listing the .050" number as not everyone measures the advertised number the same, solid lifter ramp vs hyd lifter ramp vs roller lifter ramp vs race cam ramp vs stocker ramp ect., it's all different. Just look at the .050" number for what you are doing.
Who makes that cam?With the cruising RPM that low, I would go hydraulic flat tappet
Cam#: SBC, H62279-64260-110
.418"/.390" Valve Lift, w/1.5 rockers
If he's giving you his recommendation.....it's his cam.Who makes that cam?
Jones Cam Designs in Denver, NCWho makes that cam?