Technical Cam recommendation 283 please

I have the following setup
283 .060 over (292)
world products 52cc 1.94/1.5 valves (have been milled from 58)
ramhorn exhaust manifolds
465 holley
edelbrock performer

Leaning towards 097 style cam? any other suggestions please let me know. Thank you-

 

what is the rear gear ratio?

 

So...where are the car details. Does it weight 1500lbs or does it weight 5000lbs..?
And the trans., auto with a 3500 stall speed converter or a 1200rpm converter. OR a GM T10..?
Details man, DETAILS...they ALL count..!

Weight of car ?
Gear ratio ?
Transmission ?
Tire O.D. ?

And...WHAT is a 465 Holley ?

Mike

 

465 Holley is a killer carb for small V8 or 6’s built for rock crawlers not known to many. 270 hp mechanical would be my choice with a 3 pedal car..

 

465 cfm 4bbl Holley
3.73 gears
Sm420 4 speed
4000 lb 1959 gmc pick up!

 

the 097 works well in 283s. i ran that cam in a 1958 chevy in the 60s with dual 4s and camel back 2.02/1.60 heads. however, today i only run hyd roller cams due to todays oils and i don't want to adjust the valves periodically. the 30-30 cam (1965 corvette fi cam) will also work. comp cams can grind any roller or flat tappet profile you desire. btw i still run dual fours, but now i run dual fitechs. hope this helps.

 

The L79 , 327/350 hp hydraulic cam would work nice.

 

Don't know a lot about cam selection but in 1978 I put a 30-30 Vette FI cam in my new '78 OT GMC 1 ton srw 4x4 and it ran like a striped ass ape.

 

What about the 151 cam? Does anybody still run those?


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I concur!
Something that many people don't realize is that the hydraulic cammed L79 327 is the same engine as the solid lifter 365/375 hp 327 engines, the difference is only in the cam/lifters, they both have 11 to 1 compression and big valve heads.

 

yep the l 79 is what i have in my 66 vette, great engine. mine has a 64 fi unit on it runs really well

 

Yessir I do. The 151 cam and the L-79 cam are one in the same, 151 is the last 3 digits of the part number. Great steerable cam.

 

10-4!

NOS GM issue "151" cam in my nearly NOS and still never fired L79 engine.

 

What intake are you^^^^^running on that?????.....

 

That is the GM factory Winters "snowflake" casting intake for the 66/67 L79's.
Bought it new in the box in the late 80's for $200, they are now going for over $1500.

 

Ouch!....

 

I wish Winters would recast the Z/28 intake.... I know Holley has a good copy.... That was also cast by Winters... I forgot the name of that intake...???....

 

Since I'm a Ford guy you prolly will discount my suggestion.
All those 30-30 Duntov cams.....L-70 cams....etc are OLD tech stuff! (Just like Boss 302 stuff...old tech)
Spring for a custom grind cam. They don't cost any more than a shelf cam and get it tailored for what you have/want. They make wayyyy more power and don't stress your valve train like the old "stand bys".
I called Delta Cams and told Ken what I was putting it in and told him I wanted it to run good BUT I wanted it to sound like a hot rod too! He laughed and said MOST of the guys he talks to sez the same thing. They ground it with middle-of-the-road lift and duration and a tight LSA. Cuts up at idle and by 1500 RPM its pinning me in the seat(an smoking tires)
Do yourself a favor and talk to a cam grinder ......but remember what all us guys said. Mix the two and you will be happy. (its the same money$$)
6sally6

 

Holley "Street Dominator"

 

Thank you SIR!!!!!!......

 

Sorry guys! You learn something new every day and once again you guys have taught me something! I did not realize the 327/350 cam and the 151 cams were the same! I remember reading a book many moons ago called How to Hot Rod Small Block Chevys and the author praised the 151 cam for Street use. Being a young and dumb kid (high school) I didn’t know what the 151 was. I just remembered the number. Thanks Guys!


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My first hotrod, 1967, had a 265 sbc in it. I put a 151 in it. I remember grinding a groove in the rear journal for the 265 oiling system.

 

With your overbore and the small cc heads you will need high test gas. just a well use a tried & proven. 30 -30 cam

 

I totally agree and run one from Comp Cams in my sbc stroker w/aluminum 2.02 valve heads, dual quads, 2500 converter, 700r4 and 4.11 gears.

 

That's what's in the 283 in my '34. Killer in that light car with a 350 TH, but it wouldn't be very happy in a 4,000 lb pickup, nor with power brakes. (2,500 lbs, 3.55 gears, 350TH with a shift kit.0

 

Both the '151' hydraulic cam and the '097' Duntov solid lifter cams are good cams for a 'built' 283...... Both are a bit large for anything under 327 cu. in. but given your granny 4-speed with 3.57:1 2nd gear and 3.73 rear gearing, you should have plenty of gear to move your heavy truck.

That said...... If you have flat top pistons with the usual valve reliefs set at zero deck and run a 0.045" thick composition head gasket...... You will have 9.9:1 static comp. ratio. So you will need a cam like the Duntov '097' or the '151' hydraulic in order not to have detonation issues.

The '097' solid lifter cam has 228/230 degrees duration @ 0.050" lift, but has only 0.400" lift with 1.5:1 rockers.

If you are using a GM cam, consider one of the following......

'962' hydraulic: 224/224 duration @ 0.050" lift, 0.447"/0.447" lift, ground on 114 deg. LSA

'151' hydraulic: 221/221 duration @ 0.050" lift, 0.450"/0.460" lift, ground on 114 deg. LSA

'178' solid lifter: 231/239 duration @ 0.050" lift, 0.441"/0.455" lift, ground on 116 deg. LSA...... If you run the '178' LT1 cam, advance it 4 degrees when installing it and you should be good to go.

Ramshorn exhaust manifolds...... Try and score some ramshorns having the larger 2-1/2" outlets and run 2-1/2" duals. Either that or a set of Sanderson Q 1000 cast iron exhaust manifolds having 2-1/2" outlets. Be sure to run an H-type crossover (balance) pipe and free flowing 2-1/2" mufflers. Tailpipes can be reduced to 2-1/4" or you can keep them at 2-1/2".

Of the cams listed, I would suggest the '151' cam for your engine.

Edelbrock EPS intake is a good match for your engine if you change intakes.

Hope this gives you some ideas,

Harry

 

If it were my choice and I wanted a solid lifter cam I would use the 097 Duntov cam. But if I were to go hydraulic I would go with the 151 cam. Possibly go with a 500-600 cfm AFB also. With the granny 4 speed and 3:73 gear, you should be in the ballpark as far as RPM range for both cams. JMHO.

 

I have the same motor as you 097 Duntov Muncie 4 speed 411 gears

 

283+0.060",early small port heads, Edelbrock intake and carb, 097 cam. Stock 40 Ford 3 speed and 3.78 rear, 225/75x15 tire. 3000# w/driver and 1/2 tank of fuel. The key to being happy with this cam, besides its performance, is posiloks on the adjusters which eliminate frequent relashing. Solids always sound better.

vic

 

Way back in 1983 my bud Chico (Cal Cams, Hayward, CA) told me a short story about cams, his dyno, and some interesting results. My '55 F100 then had a '69 LT Chev in it, but I wanted a little more torque...
He sent me 3 cams, (hydraulic types) and said 'try one...you'll like it.' I did, and I did!
This was about the time Isky came out with his 'Max' grind for flatheads. (used one in a 3/8" X 3/8" for a customer...Way more torque in a wider range)
Yep. The new age had arrived.
Al Teague (Speed-O-Motive) was my main parts supplier, and he had a SBC hydraulic cam with the 'new specs' then, used that one in customers' cars, O.T. Chev trucks that 'had to pass a smog test'. They did.
Delta Cams (Washington State) is my new supplier. (5 years now)
Ken has a collection of classic grinds, but recommends the new tech grinds. I agree.