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Discussion Starter · #1 · (Edited)
Because I am having issues with degreeing my old 292h cam, I cam contemplating a new cam. I would like to stay hydraulic flat tappet for cost reasons. I may consider solid, but I am really not keen on adjusting valves at every oil change. (but would consider it if the cam fits the Needs)

This car is a cruiser that will mainly be driven on the street but will see test and tune and Friday night street fights (on a track).

The Car
68 Camaro coupe full interior
4 speed muncie M-21
12 bolt rear with 4.10 gears

Engine
010 350 Block .030 over (4.030 bore)
3.75 stroke forged Crank
6" H beam Rods
Mahle 4.030 flat top Pistons -5cc valve reliefs
Decked square to 9.005 (pistons .005 in the hole)
Head Gasket Fel-Pro Z1010 .039 compressed 4.166 bore

Heads: Canfield 220 aluminum
65.5 cc chambers
2.080 valves
NO porting
987 comp springs (1.430")
Flow from Comp Cams Camquest
Intake
.050 34
.100 69
.200 146
.300 206
.400 245
.500 260
.600 265

Exhaust
.050 28
.100 61
.200 114
.300 144
.400 174
.500 182
.600 190

From Canfields Web site: Note says "These flow numbers are reflective of mildly bowl blended ports" (I have not touched the ports)

Intake
.100 71.7
.200 144.9
.300 206.4
.400 252.4
.500 288
.600 301.7
.700 306.1

Exhaust
.100 52.2
.200 104.9
.300 146.2
.400 184
.500 203.2
.600 219.2
.700 227.2

I am also debating on the 1.6 rockers also

What cam do you think would best fit my needs?

Thanks!
 

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FYI,with a solid flat tappet cam thats not a wild agressive profile you dotn have to reset vlaves every oil change.

You break it in,chk valve lash and readj if required and then chk lash 1x more a few hundred miles later and you should be good to go rest of season.

Many people running soilid flat tappets that arent real agressive go a full car show/cruise season before having to do lash adj,some go 5k miles or more with no adj needed.

So a 1x yrly valve adj isnt that bad at all if you dont mind a little valvetrain noise from a solid and if you do then dont run that or for that matter a comp XE/extreem energey series hyd flat tappet cam either as they can be noisier then many soilid setups.

BTW,you'r nice little 350 with perf AL heads & 410 gear would really benefit from a nice solid cam.

Since you were going to install a fairly hot for 350cid 292h cam which i believe has 244 deg dur @.05 on a 110 deg LSA here are 3 soild flat tappet lunati voodo cams and 2 hyd flat tappet cams that should work well in your setup that are very roughtly in same perf catigory.

For me i would opt for 1 of the last 2 cams listed below that are slightly milder.

But as always you will get many different opinions/suggestions (some may be better then mine) on what cam/s will work well with your setup so in the end it will still come down to you choosing which cam to go with .

Scott
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Solid, fair idle. Good performance street and mild bracket race.

Advertised Duration (Int/Exh): 278/288
Duration @ .050 (Int/Exh): 239/239
Gross Valve Lift (Int/Exh): .517/.543
LSA/ICL: 106/102
RPM Range: 3000-6500
Includes: Cam Only

Part Number: 40134

note-for above cam i see int/ex .05 dur are same but adv dur says its split with more ex dur so i am not sure if thats a typo on the lunati website or what.
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Solid, rough idle. Has very good mid-range power. Good for bracket car.

Advertised Duration (Int/Exh): 283/293
Duration @ .050 (Int/Exh): 244/254
Gross Valve Lift (Int/Exh): .532/.552
LSA/ICL: 106/102
RPM Range: 3200-6800
Includes: Cam Only

Part Number: 40135
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NOTE-SINCE YOU HAVE GOOD BREATHING PERF AL HEADS AND I WOULD ASSUME HEADERS YOU COULD ALSO RUN 1 OF THESE SLIGTHTLY MILDER SINGLE PATTERN SOLID AND HYD CAMS IF YOU FEEL YOUR SETUP DOESNT NEED THE ADDITONAL EX DURATION. BUT THAT'S ONLY IF IT WOKRS OUT OK TOP END RPM WISE FOR YOUR STRIP APPLICATION WITH 4.10 GEAR DEPEDING ON TIRE HEIGHT,THIS WOULD BE THE MOST STREET FREIDNLY 0F THESE 3 CAMS.

Solid, fair idle. Good Hot street/strip cam, also good for lift rule classes. Needs 2500 RPM stall converter, headers, increased compression ratio, and 3.55 or better gearing.

Advertised Duration (Int/Exh): 280/280
Duration @ .050 (Int/Exh): 232/232
Gross Valve Lift (Int/Exh): .487/.487
LSA/ICL: 108/104
Valve Lash (Int/Exh): .022/.024
RPM Range: 2500-6000
Includes: Cam Only

Part Number: 40155
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" Hydraulic FLAT TAPPET" , very lopey idle. Hot street performance or oval track cam in 350-400 cubic inch motors. Needs 3000-3500 RPM stall converter, headers, increased compression ratio and 3.73 or better gearing. Will need vacuum canister.

Advertised Duration (Int/Exh): 284/284
Duration @ .050 (Int/Exh): 232/232
Gross Valve Lift (Int/Exh): .490/.490
LSA/ICL: 110/104
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 3000-6400
Includes: Cam Only

Part Number: 301B2LUN
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Scott
 

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As what Scott said, you don't lash every oil change, unless you are running standard rocker arms. The key is quality rockers and locking nuts. If you have to lash more than once a year, then you have something wrong with your setup. Solids make more power period. The tight lash cams are very quiet also. My old SBC with either a Lunati 401A6 or A4 was as quiet as hydraulic after break in.
 

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Discussion Starter · #4 ·
Thanks Scott! I will look into these. BTW this is a 383 so I come up with 10.77 to one compression. I am worried the shorter cams may put me over the top on DCR.

BTW its also a 28" tire if this helps.
 

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Comp Cams 294S, I ran this in my 383 worked quite well. The above mentioned cams would be great in a 355 but not 383.

Dave
 

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Because I am having issues with degreeing my old 292h cam, I cam contemplating a new cam.
Not sure what one has to do with the other ??? You will still have to degree the new cam and still might have issues if there is a problem with your timing set, crankshaft keyway position etc. You need to get your present cam degreed in first, then think about if you want to change.

Just my opinion,
 

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Discussion Starter · #8 ·
Bill, its really two fold. I have isolated the issue I had to the timing set. The numbers on the cam ended up dead nuts but spread out some. The main reason for the new cam is the fact that the 292h is used. Not bad in the grand scheme, but since I have this thing on the stand and not in the car, I am second thinking the cam selection. The second reason is that because of the issues my wife has already given the green light to "just buy a new cam" (-:
 

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I have this cam for sale, super wicked idle, its a 112 so its got a good torque curve, just pulled it out of my engine last night, still have lifters in order. I have a 355 with .125 domes, 10.86 c/r. I had it in a s10 that did not weight nothing and ran a good 1/8 mile. it has 8 1/8 mile passes and maybe 400 street miles. Let me know if your intr...

http://www.dougherbert.com/hydrauliccamlifters-p-9647.html?cPath=83_84_85_621
 

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Comp Cams 294S, I ran this in my 383 worked quite well. The above mentioned cams would be great in a 355 but not 383.

Dave
The above cams were mentioned for their quietness, not as a recommendation. They would still be great in a 383 with around 9.5 - 10-1 compression.
 
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Might consider a good old Isky Z-30 solid cam here. Or their Z-35 and 505-T, but note that since these are ALL ground on 108/108, they will be down right "knarly" sounding, imho....

I figure the D/H cam as too big at 300. I also figure a 300 need's right at 12 to 1 CR. to run like it really is meant to be ran even tho it will work at less than 11.

pdq67

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Discussion Starter · #12 ·
The above cams were mentioned for their quietness, not as a recommendation. They would still be great in a 383 with around 9.5 - 10-1 compression.
I should mention quiet is not a concern....:thumbsup: I like some rumble...
I will be running 7/16th studs, but I don't think I have room for a girdle under my valve covers. Maybe solid is the way to go..... Most of these look like my springs, (125 lbs on the seat at 1.90) would work to. I just paid to have them set up and shimmed.

I like the 40135. Decent lift, decent close to keep the DCR down....

I also like the Voodoo 60105

Could someone Desk top Dyno both of these for me?

Thank you all for your suggestions!
 

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Discussion Starter · #13 ·
What about the Isky Z-27?
 

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I should mention quiet is not a concern....:thumbsup: I like some rumble...
You would get plenty of rumble. They were mentioned for their quietness in valvetrain noise! They do not have the valvetrain noise associated with loose lash cams.

Here is a good mention -
Lunati 401B8 - Get it on a 110 lsa, install on a 106 icl for 8.24 DCR -

Solid, rough idle. Good Pro Street, Bracket Race or Oval Track cam for 327-406 cubic inch motors.
Advertised Duration (Int/Exh): 288/296
Duration @ .050 (Int/Exh): 255/263
Gross Valve Lift (Int/Exh): .540/.556
 

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Discussion Starter · #16 ·
Walter, I cant find this cam in the LSA you mention, only 105?
 
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