Is it too big, how bad of an idle seems like a lopey 350 cam. im looking for around 300hp, and some nice torque. Im willing to spend the extra 50 bucks, since the engine cost me nothing.
Lunati Cam. $234

Part #:301A5LUN
17" vacuum
600-5600rpm
Intake/Exhaust
Ad duration: 272/272
Duration @ 50: 217/217
Valve lift: 0.454/0.454
Lobe lift: 0.303/0.303
LSA: 112

Springs:73943


It use the same $93 lifters i want and the springs are 80 bucks.
So to complete my heads heads $500 brand new valvetrain, before employee discount. One more question will it work with stock 416's?

 

oh its a 1980-85 Carbed smogger motor with 416's, dished pistons and i was just told it is hydraulic. The 305 was rebuilt and bored 60 over to a 315. its the 202 engine block.

 

That cam does not seem too big, it looks like a pretty good cam in my opinion, I would run at least 9.5:1 compression.

 

yeah the advertised duration is what made me kinda ify, is the L98 cam specs @ 50 or advertised

 

They are @.50 I believe the L98 cam is about 200-210 degrees of duration, so 217 degrees is not too extreme.

 

Not a bad cam. You could go up to .442/.465 lift no problem on 416's as well. With new springs even further. Watch out on rockers, 1.6's will increase that lift a bit and could make you run into problems.

300HP at the Flywheel is a tad harder on 416's in stock form....port them and enlarge the valves to 1.94 and you'll see good power and torque with that cam.....the stock bottom end will hold up just fine and remember the little things too like oil pump, good gaskets, etc.

Also, it is a hydraulic lifter motor but NOT a roller lifter motor. You can buy a Cam kit through any company with new Hydraulic lifters, which is required on every cam swap.......

 

i was going to get new flat hydraulics since they are excessively cheap, Do I have to buy new pushrods, and rockers? I was going to reuse the push rods but my little brother got them out of order, so can i reuse them and the rockers are the oem stamped stuff, can i run them safely?

 

I'd go with a cam thats asymmetrical, with more duration and lift on the exhaust side.

Also do you know where the total cam duration is measured from .006, .004?

Because that cam seems kinda weak, with a conservative lobe ramp. I mean 217* @.05 and 272* total. Compare that to something like a comp XE 262, 262* total at .006" and 218* @.05 on the intake and 270* and 224 @.05 on the exhaust.

So you can see that the comp cam has a much more radical lobe grind. This will produce better drivability, less lope and more power.

 

I agree with ME.

Lunati has just brought out a very interesting assymetrical lobe design called the Voodoo series. Try the 262 model in the Voodoo lineup, or the one just below it in terms of lift and duration.

Yup, if I was doing my 305 over again, I'd try this Voodoo design out. It looks really hot

 

I just looked at them but i cant find a price on them.

Would this work with 416 heads and a 315= 3.8x3.48

the 268 cam

advertised:268/276
duration at 50: 227/233
lift: .489/.504 can a 416 do that? Of course it would need springs but.
LSA/ICL:110/106

Rpm range: 1800-6200....How bad of an idle and where would idle be?

the package with the cam and lifters from JCwhitney is $300.
Asymmetrical enough? That would surely make power. but what about idle?

 

Summitracing.com

That cam is a little big for a 305, the 262 is better.

 

thanks me leigh, im gonna look a little harder into those cams im gonna run the numbers by my dad before i pick one out. It my first engine build it would be his #,###. So yeah, he might be a little better than i am.

 

I ran the CC XE274-H in my 305 with ported heads and it was great. Still had the cast iorn intake and exhaust manifolds on it. Only problem wasl I pulled into the gas station constantly. It could actually still pull a 5,000 lbs brick in OD with 3.08 gears. I could run a 14.5 @ 95 in a G20. Ran it to 6,500 where it shifted 1-2 then crossed the traps at 5,500 in 2nd.

 

Wow, a smaller cam would have do better.

 

That cam has too much lift for a set of 416 heads. Stick to something with .460 lift or less on both lobes.

Or machine the heads for greater lift capability.