Street Cam sbc

[rdkonkel]

Just getting ready to assemble a 355 sbc with rhs 220cc intake runner heads 64cc comb chamber
Edelbrock performer rpm dual plane intake, 1-5/8 headers, (no carb yet)
What’s a good Cam for a street motor. Going in an el Camino. No drag racing just want good power/torque. Have overdone it with too large of Cam before. Haven’t built a street motor for 20 years, only race. With all the new ramp designs surely I should be able to go bigger than what was normal back in the nineties. Any advice?

[lefty o]

the great thing is, with newer lobes you dont have to go bigger than back then. you can run the same or smaller and make more power.

[PackardV8]

Knowing weight (an ElKay can be 4,000#?), rear gear, transmission gearing and if AT, the converter stall would be what most cam guys would want to know.

[CamKing]

RHS 220cc, is a pretty big head for a 355cid street engine. What RPM are you planning on turning it?

[rdkonkel]

Just getting ready to assemble a 355 sbc with rhs 220cc/or 200 cc (have both) intake runner heads 64cc comb chamber
Edelbrock performer rpm dual plane intake, 1-5/8 headers, (no carb yet)
What’s a good Cam for a street motor. Going in an el Camino. No drag racing just want good power/torque. Have overdone it with too large of Cam before. Haven’t built a street motor for 20 years, only race. With all the new ramp designs surely I should be able to go bigger than what was normal back in the nineties. Any advice?

[rdkonkel]

Tried editing post but that didn’t work.
I have a set of aluminum afr 220’s and a set of iron world products 200 cc runner(and a set of dart 165’s but ick)
Basically I’m looking for some advice as to what is possible as I’ve not worked with these new setups.
I remember years ago I used a .488 lift Cam in a 327 and it was aweful until 3500 rpm.
Car has a overdrive trans with a lower first gear, willing to install a higher rear gear but want highway cruising ability. Car has been lightened as far as it can be (inner fenders, alum intake, alum wheels, alum radiator etc. )

[BOOT]

Flat tap or roller?

[Baprace]

I would use the 165cc for street with an overdrive trans.

[CamKing]

I just put one of my small hydr roller cams in my boat engine. Is this the RPM band you're looking for?
It's a 355ci SBC with 10:1, ported 492 heads, Performer RPM, and Holley 600.

RPM---TQ--BHP
3200--436--266
3400--443--287
3600--445--305
3800--444--321
4000--443--337
4200--440--352
4400--440--368
4600--441--386
4800--441--403
5000--432--411
5200--422--418
5400--412--423
5600--400--426

The cam is 216/220, .544"/.544" Valve Lift w/1.6 rockers, on a 112 LSA, and 108 ICL

[rdkonkel]

Possibly even a little lower rpm to get decent drive ability at Part throttle at 55mph and around 2000 rpm

[rdkonkel]

One of my small cams..!

[CamKing]

Possibly even a little lower rpm to get decent drive ability at Part throttle at 55mph and around 2000 rpm

The seat duration on this cam is 264/268 @.006"
That's shorter then most stock cams.
You're not going to find a cam that makes more power at 2,000rpm.

[F-BIRD'88]

If you want to make effective use of overdrive then you DO want a cam like Cam King is suggesting. It will work very well.

[rdkonkel]

With matching size eyebrow pistons, can I safely get to .550 lift with 2.02 valves?
Or does this type of Cam ramp up the speeds so interference is Less likely

[rdkonkel]

Mike, can you email me a price for the Cam /lifters from you.
Also is it possible to do a flat tappet Cam (non roller)