Cam choice in a 350 .60 over

[sir_talk_alot]

please dont move, hoping to get more help here, the engine and drivetrain section has led to few comments. wanting to ask some of you guys what cam you are using in your sbc. ive got a .60 over 350 that im fixing to install flat top pistons in. ive got 461 double humps that have been race ported, opened up bit time. they have been cleaned, decked all new guides and seats. they are 202/160 valves 3 angle job. im gonna use the felpro blue gaskets. im wanting to ask what cam would be my best bet. i definitely want a thumpty thump cam idle but good performance for my setup. im guessing my truck has 373s, not sure, i mean it burns 1 tire pretty good so maybe. ive got a turbo 350, im going to install a shift kit, ill get a stall converter to go with the cam. im gonna run a hirise and an edelbrock 600/650. opinions? i like the sound of the lunati 268h

[70CHEVYBB]

comp cams mutha thumpa cam

[cdowns]

thumpa good for noise not so good real world goin down the road// but if you just want to chruise parkin lots and thump thump thump go for it

[PanelDeland]

Call the cam co tech lines.Tell them what you just told us and add Tranny,rear gear ratio,tire size and truck use.They'll ask CR and head flow.They may ask even more.They have matched cams to combos for so long they will have the best choice for your setup.Cam co's are not like buying from other co.They generally have a good idea what goes into the right combo,that's where the power is.

[72 K20]

It's hard to beat a 268 high energy comp cam. Somewhat lumpy idle,great power and economy and good vacuum for accessories

[trac209]

Originally Posted by 72 K20

It's hard to beat a 268 high energy comp cam. Somewhat lumpy idle,great power and economy and good vacuum for accessories

X2 people tend to over cam because they want thump and they end up with a doggy engine.
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[piecesparts]

The theory of a cam is to match up everythng, so that it will work properly. Depending on a tranny, you may have to get a different stall on your torque converter if your cam is serious enoguh. Otherwise the vehicle will stumble at a stop and try to push you through the light or stop sign.

[smoknbarrels]

Originally Posted by trac209

X2 people tend to over cam because they want thump and they end up with a doggy engine.
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Originally Posted by piecesparts

The theory of a cam is to match up everythng, so that it will work properly. Depending on a tranny, you may have to get a different stall on your torque converter if your cam is serious enoguh. Otherwise the vehicle will stumble at a stop and try to push you through the light or stop sign.

I agree with all three of these guys.. I actually had a nova years ago with the exact stats you listed, just lower gears. Too much cam is not always best.. Aslo is it just a flat tappet? Get a wild cam which is non roller, and be prepared to burn a lobe off in no time, also your valve springs may need an upgrade because of the high lift. I would go With a 268 extreme energy... Still gives onough vacuum and sounds a little pissed off.
Also a huge cam in a .60 over engine likes to make a lot of heat, i hope you got a good rad..

[Tx Firefighter]

A 268 High Energy is my go-to cam on many of my builds over the years. If you want a bit more choppy idle go to a 270 Magnum. It's still very streetable but needs a looser converter to make it pleasant on the street.

Here is my 63 truck with a 268 High Energy. Sorry about all of the steam. It was cold that morning when I took the video.

http://m.youtube.com/#/watch?v=aIjenvDSpAw

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[sir_talk_alot]

Yea i definitely want a streetable truck but i want to concentrate on performance also. Ive got the standard radiator in it now, should i upgrade it? Id like somewhat of a stout truck off the line. What do you guys think i should go with. The heads are bare, i havent put in springs yet and im just going with a hyd flat tappet. Id like to make around 375-400hp. Goal anyways
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[sir_talk_alot]

Originally Posted by Tx Firefighter

A 268 High Energy is my go-to cam on many of my builds over the years. If you want a bit more choppy idle go to a 270 Magnum. It's still very streetable but needs a looser converter to make it pleasant on the street.

Here is my 63 truck with a 268 High Energy. Sorry about all of the steam. It was cold that morning when I took the video.

http://m.youtube.com/#/watch?v=aIjenvDSpAw

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How is your truck with that cam? I like the sound of it, its got a decent cam idle that i could live with.
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[cerjio]

i have a similar motor mines .40 over with an comp cams 268 , My stock 350 th , needs a shift kit in it now to match the cam but its still fun to drive ~

[b.eddy's72]

I have a about the same motor as you do minus 2.02 heads. My cam is a 268 with .477 .484 or real close to that I dont remember exactaly. I also have 1.6 Crane rollor rockers. This is through long headers, 2 1/2 exhaust, and series 40 flowmasters. I tried to upload a vid but it would not let me. Look up Bryan Eddlemon on FB and there is a vid with no exhaust and one after the new exhaust. And no the power steering pump isnt whinning it doesnt have one. The whinning is the Erson geardrive.

[Tx Firefighter]

Originally Posted by sir_talk_alot

How is your truck with that cam? I like the sound of it, its got a decent cam idle that i could live with.
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I've used that same cam grind in several engines I've built over the years. I guess it's my favorite. Good mileage, nice idle and enough vacuum for power brakes.
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[sir_talk_alot]

ive got long tubes and im probably gonna do the geardrive. wanting a good hp cam

[sir_talk_alot]

Originally Posted by Tx Firefighter

I've used that same cam grind in several engines I've built over the years. I guess it's my favorite. Good mileage, nice idle and enough vacuum for power brakes.
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whats your hp?

[b.eddy's72]

TX Firefighter I literly LOL when I read "Land of MILFS and Honeys" and then saw your from Springtown. Many of the Honeys are missing multiple teeth and either weight 85 lbs or 285. Ive arrested many of the 85lbs.

[Tx Firefighter]

Well I'm a long time Weatherford resident and I live on the Weatherford side of Springtown so I can almost see the honeys in Weatherford.
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[glider_6969]

Originally Posted by sir_talk_alot

please dont move, hoping to get more help here, the engine and drivetrain section has led to few comments. wanting to ask some of you guys what cam you are using in your sbc. ive got a .60 over 350 that im fixing to install flat top pistons in. ive got 461 double humps that have been race ported, opened up bit time. they have been cleaned, decked all new guides and seats. they are 202/160 valves 3 angle job. im gonna use the felpro blue gaskets. im wanting to ask what cam would be my best bet. i definitely want a thumpty thump cam idle but good performance for my setup. im guessing my truck has 373s, not sure, i mean it burns 1 tire pretty good so maybe. ive got a turbo 350, im going to install a shift kit, ill get a stall converter to go with the cam. im gonna run a hirise and an edelbrock 600/650. opinions? i like the sound of the lunati 268h

Your set up is pretty close to what I have and the engine I'm building, the cam that was recommended by the shop who did my block recommended this,( this shop I work with also builds complete engines and they do alot of them) I wasn't looking for something to crazy but it had to be noticable. Hope this will help

Comp Cam.part #12-432-8
Adv Dur: Intake,282 exh.288
Dur@.050 Intake,230 Exh.236
Lobe Sep: 110.0
Valve lift; Intake,.510 Exh..520

[buckskins4ever]

Go with the Comp Cams Mutha Thumpa 291THR7.....Badass High Energy Cam and very sweet deep lobe

[sir_talk_alot]

im wanting to stay with hydraulic flat tappet for $ reasons. im just wanting a solid cam that wont be a dog down low, something with spunk to move a truck well, and still breathe good all the way up .

[buckskins4ever]

stay under 280 advertised duration and 450 lift.......read all specs before you choose one, they will indicate which converter you will have to run....and look at raising up your rockers degree a little.
If you go on Comp Cams website, you can kinda get a little sound of what a few of teir best seller cams sound like in your 350SBC.

[buckskins4ever]

the 268H is a good all around choppy idled, hydro flat tap RV cam....and not overly expensive.

[sir_talk_alot]

Originally Posted by cerjio

i have a similar motor mines .40 over with an comp cams 268 , My stock 350 th , needs a shift kit in it now to match the cam but its still fun to drive ~

Hows take off and accel? Thats my concern. Somethng that grunts down low. 5grand is about max ill b running for rpms
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[brad_man_72]

Pretty simmilar engine with a comp xm278. Seems to run fine but I have a huge torque converter lol

66 stevens comp xm278 idle - YouTube

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