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Discussion Starter #1
4BBL Edelbrock card & intake, th350 transmission, 3.08 gears, 9.25:1 compression, 1.84 1.50 valves. Whats the best cam for this combo? Anyone have anything similar?

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Discussion Starter #3
It is a driver but not my daily driver, I would like to get some good performance out of it...good for weekends.

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We raced a 283 Nova with a regular RV cam, the standard 204°/214° special from most warehouses, and it worked very well in a mostly stock 4-bbl 283.
 

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Stock 283 heads don't flow over .450" lift. Don't go wild with the duration either.
I think Mike's choice is probably a good one.
 

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Cam

I called Wolverine several years ago and they suggested the old 327/350 grind. It was very reasonable and they suggested a 1.5 rocker on the exhaust side for more low end.
I installed all the above in a 78 nova, Saginaw 4 spd and I was very happy with the performance, economy and driveability.
Shortly there after I acquired a wrecked 78 Z-28 and swapped the 3:42 posi from the Z into the Nova (was a 3:08). This change was the best improvement I made to the car. This gear got me into the torque curve quicker and also allowed me to use 4th gear more at lower mph.
It was a fun car to drive when I sold it.
 

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Discussion Starter #7
The heads are a 601 casting off of a 305 with 58cc chambers...I really dont know if these are anything but average flow.

I have been considering a change in gears to a 3.36 or 3.55. Fore-speed, do you think the 3.36 would be a good change? Do you think 3.55 would be a little low with a TH350 & 25" tall tires?
 

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283 cam...

Norm is on the right track with the 327/350 cam..good power, though you won't see the full potential with smaller 283. Stepping up the gear is a definate advantage for a small motor like the 283. 3.36 to 3.42 is enough with those 25" tires.

Norm, don't you mean 1.6 on the exhaust side?? 1.5 is stock.....

wilma
 

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Mike Goble said:
We raced a 283 Nova with a regular RV cam, the standard 204°/214° special from most warehouses, and it worked very well in a mostly stock 4-bbl 283.
When I chose the cam for my stock 283 with a 4-bbl carb, I ran computer simulations with most of the cams out there. The 204°/214° cam produced the highest average torque and horsepower than any other cam. I put it in my 283 but I don't have it on the road yet. It is the Edelbrock Performer-Plus cam, Summit Racing 1102 or equivalent cam.
 

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A 327/350 cam is too much for a low compression 283. The long duration will kill ALL semblance of torque. My 283 had absolutely no bottom end even with a 2400 converter. You had to rev it clear over 3500 rpm before it started to think about pulling. Reving it clear over 6400 tossed the connecting rods.

Get a small generic summit cam (the edelbrock performer rip off) and lifters for 80$ and get on your way.

Kev
 

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Discussion Starter #11
Right now I have a 214/224 .442/.465 cam with the 9.25.1 compression & it acts like novaboy009 describes. It really doesnt start to pull until about 2800-3000 & I stall at about 2400. I know the gears would get me there faster but would I be better off going with a smaller cam? It would pick up power sooner but would I be disappointed with the smaller cam power after having the one thats in it?

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30 years ago I used a 327/350 cam in a 10.2:1 283 V-8 Vega, an 8.2" ChevyII rear axle with a 3.55 gears and a 2,200 converter. With me on board it weighed 2550 lbs. It ran low 14's at 98 mph. The mph figures out to 190 HP rwhp or at best 228 engine HP assuming 20% driveline losses ( I think it made more like 220hp). Not very impressive.

Keep in mind that the L79 had more cubes and 11:1 compression.
If you put it in a 9:1 283 it sounds radical but will only make power over 3,000 or so. I predict 200 hp with 9:1. A bone stock 350 will make that.

With your current gears/converter it will be a dog until the rpm comes up.

IMO and experience, to use the L79 cam properly in the 283 you'll need a higher stall torque converter, 3.55 or 3.73 gears and at least 10.5:1 compression. In the end you'll have a nice engine but still gets spanked by just about any 350.

The only way you can make that little 283 run like a bigger engine is to force 6-10 psi of air into it.
A little 144 supercharger is what you really need. With only 6-7 psi of boost you can have 350 hp.
 

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You may look at the XE line of cams from Comp Cams. I run the XE256 in my 283. I have better heads, but less compression. I would suggest you look specificaly at the XE252.

Jack
 

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Paul Wright said:
the only way you can make that little 283 run like a bigger engine is to force 6-10 psi of air into it.
A little 144 supercharger is what you really need. With only 6-7 psi of boost you can have 350 hp.
or you could have a 350 with that same setup and make 400-450HP easy:cool:


BUT back to your question I would think as others have said the L79 cam would not work well for you as your compression is WAY too low and your gearing is too high (to low a number mumerically)...

If it was my car I would run something in the [email protected] duration range and about .440 lift...that would give you decent performance with your compression and with the gearing you have likely give you close to 16-18MPG possibly more. for a short while I ran a simular cam in my 350 with 3.73 gears and I pulled off a solid 16MPG with that...
 

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Discussion Starter #15
So, if I have a 350 shortblock with flattop pistons & I put my carb, RPM intake & TH350 with a 3000 stall converter(about 22-2400 in my 283) from the 283 & put it on the shortblock, what would be my best choice for cam & heads for a good street machine? I have considered the 280H from Comp & was wondering what is a good casting to have 2.02 valves. I love my 283, its different than what everyone else has but I really cant argue with the facts, to make it run great it would be too much money & too radical & I would need a 4 speed or huge stall to get to the power range. Oh well, I still have my 283 in my pickup!

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Discussion Starter #16
I might have to start a new thread for this one.

Thanks again.
 

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Cam..engine..??

We used to use that L79 cam a lot back in the day..maybe it wasn't the best choice..but we usually kicked up the compression and most guys were running 4 spd trannys..so it was ok. now you are looking at a 350..the choices are endless there..might want to consider one of the entry level crate motors. they are lot of value for the $$.

wilma:shh:
 

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Discussion Starter #18
I already have a 350 short block with flat tops that I would like to use...any good cam & head combos with my current parts?
 
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