400 sbc new solid roller cam suggestions - Team Camaro Tech
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post #1 of 33 (permalink) Old Nov 27th, 06, 12:10 PM Thread Starter
 
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400 sbc new solid roller cam suggestions

I have a 400 SBC in a 68 camaro. The tranny is a 350 turbo with a 3000 stall. With 355 gears in the rear... The cam spec's I have now are quite large and are listed below. Can you guys suggest a solid roller cam that would be "ok" on the street? I am also looking at the 4/7 swap for this cam. I plan on just swapping the cam and springs and keep the lifters since they only have maybe 100miles on them....


SPEC CARD
PART #: 12-000-9
GRIND #: CS 319R-1/324R-4 R107
J. DIAM: STD INT EXH
VALVE ADJUSTMENT .026 .026
GROSS VALVE LIFT .601 .634
DURATION @ .020
TAPPET LIFT 320 324
VALVE TIMING OPEN CLOSE
@ .050 INT 33 67
EXH 70 36
SPECS FOR CAM INST. @ 107.0 CENTERLINE
INT EXH
DURATION @ .050 280.00 287.00
LOBE LIFT .401 .423
LOBE SEPARATION 107.0
ROCKER ARM RATIO 1.50 1.50
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post #2 of 33 (permalink) Old Nov 27th, 06, 12:22 PM
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Don
 
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Re: 400 sbc new solid roller cam suggestions

Yes, this does appear a pikes peak cam, rather large. Hope you are running at least 1.550 id springs. I am running a Comp Xr 282HR with large springs. It is streetable enuff for me with a tremac, and 3.73 gear, but there are others.

Don
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post #3 of 33 (permalink) Old Nov 27th, 06, 01:23 PM
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Re: 400 sbc new solid roller cam suggestions

Thats a size or two bigger than I'm going. Buddy ran it on the street and track... weekend toy,streetable yes, but thats debatable.

68 Camaro~LSx
Best to Date....and tuning
1.546 60'.....7.132 @ 94.43 660'.....11.327 @ 116.79.
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post #4 of 33 (permalink) Old Nov 27th, 06, 04:35 PM
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Re: 400 sbc new solid roller cam suggestions

Check the Comp Cams catalog...I am sure they have something in the Xtreme Energy line. Does it have to be solid? I like my HR294 hydraulic pretty good...

69 Camaro, 3450lbs., 400, Cal Tracs, Coan 10", TH400, 3.50 gear, no trailer
D1SC blow thru, pump gas, 9:1, ~10 PSI,
1.325 60', 5.988 @ 115.4
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post #5 of 33 (permalink) Old Nov 27th, 06, 06:56 PM
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Doug
 
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Re: 400 sbc new solid roller cam suggestions

That camshaft has a ton of duration for a 3000 convertor and a 355 gear. I was thinking something in the 240 @ 0.050 or lower range with that gear and convertor. Would have to hear more about the compression ratio, cylinder heads and induction to make a good suggestion.
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post #6 of 33 (permalink) Old Nov 27th, 06, 08:19 PM
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bill
 
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Re: 400 sbc new solid roller cam suggestions

hey johnred68. i just finished & fired my new 434 sbc about a month ago. it has a solid roller that specs out at 254/260 @ .050 & .582/.588 on the lift with 1.5 rockers. i'm running a 4000 converter with it & 4.10's out back. I LOVE IT!!! revs fast, pulls hard, & no complaints. i drive it everyday so far (weather permiting). if you are not planning on taking any long road trips in the car, i would not hesitate to run a solid roller on the street. comp told me to keep the lift under .600 & the valve springs will last much longer in a street application. look at the comp xtreme energy mech rollers. maybe the xr274r. all the comp 4/7 swap cams are too big for you converter/gears. maybe another brand?

68 camaro, 434 sbc, th400, 12 bolt.
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post #7 of 33 (permalink) Old Nov 27th, 06, 08:56 PM
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Re: 400 sbc new solid roller cam suggestions

I put over five thousand miles this summer with a solid roller , make sure you use good lifters and a rev kit also helps them last . I run the Isky Redzones , they are also rebuildable .
Mark .
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post #8 of 33 (permalink) Old Nov 27th, 06, 09:37 PM
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Re: 400 sbc new solid roller cam suggestions

The new comp cams endurex lifters have a hole drilled that directly feeds the roller. This makes the solid rollers much more apt for the street. I have ran solid rollers in all my street cars and have never had a problem. Doug
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post #9 of 33 (permalink) Old Nov 27th, 06, 09:54 PM
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Re: 400 sbc new solid roller cam suggestions

For my part, once you get over 290-300 advertised on the duration a 3000 stall converter puts a 400 out of the torque band on launch, especially with 3.55s and if your head ports are over 200ccs. If the converter slips a lot it'll be real streetable, but at the drag strip with only 3000 stall, you're losing a lot of 60-foot time with 3.55s. When you get up around 300 degrees (250 @.050" nominal) you'll need a 3500-stall converter to make 3.55s work well. Bill--I love it! I'm screwing together a 406 with a Lunati 290/296 (adv.) --.591"/.598"--106 centerline solid roller with 1.5s and a 4200 stall and 4:11s in a '68. Can't wait to feel that sucker go sideways!

"If it breaks, fix it. If you can't fix it, have a beer and be glad it didn't kill you."
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post #10 of 33 (permalink) Old Nov 28th, 06, 05:15 AM
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Re: 400 sbc new solid roller cam suggestions

If starting from scratch there would`ve been no real need to use a solid roller in a driver 406.

Seeing you have the parts already though, you can do what the Camaro in my signature has, solid rollers on a hyd roller cam.
Light spring pressure, lighter weight lifters, especially horizontals. Lash them tight and you`re set.

Works just fine.

Steve
78 Camaro hybrid cam 406
11.41 ET @ 119.68 MPH
3.23 gears
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post #11 of 33 (permalink) Old Nov 28th, 06, 01:57 PM
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Re: 400 sbc new solid roller cam suggestions

72840LUN lifters <--not 100&#37; on how good they are.
XR292 R-10 Comp Cam
I have the heads getting worked with under cut valves and I forget the springs but they're green and good to .7XX lift.
We'll be having fun next season

68 Camaro~LSx
Best to Date....and tuning
1.546 60'.....7.132 @ 94.43 660'.....11.327 @ 116.79.
RedЯum <-Pics
More here
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post #12 of 33 (permalink) Old Nov 28th, 06, 02:19 PM Thread Starter
 
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Re: 400 sbc new solid roller cam suggestions

The heads that are on it are 292's.. The previous owner told me they were pro-ported. Comp. ratio is 11 to 1. The engine is in the car and "Runs" on the street now. But is a bit much for me. It can barely get out of its own way unless I hammer it. But when I do, watch out it take off like a bat out of hell..... With my power steering and power brakes it doesnt like to idle and stay running under 1100 rpm.... My old 350 I pulled had a mean Lopey Idle to it which I want to get back to but with alot more power.... With dd2000 it rates at 498hp.... but only 98lbs of torque at 2000rpm with my team g intake...
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post #13 of 33 (permalink) Old Nov 28th, 06, 03:17 PM
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Re: 400 sbc new solid roller cam suggestions

John, with that much camshaft and a 3000 convertor and 3.55 gear i can imagine a pig trying to get out of the slippery mud until you get about 5500 rpm I will find you the camshaft i would use a little later tonight. Once i post it everyone can weigh in and see what they think. Doug
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post #14 of 33 (permalink) Old Nov 28th, 06, 03:53 PM
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Re: 400 sbc new solid roller cam suggestions

With the drivetrain combo you have it doesn't leave alot of room to work with a solid roller. I would probly use this one if you are not going to change the gear in the car. Alot smaller than what you have now. The only thing i would do is to have comp cams grind it on a 108 lsa to bring the power curve alot tighter. Let me know what you think The part number is

xr280r
the specs are
2500-6500
242i 248e @ 0.050 duration
570i 576e lift
110 lsa, but i think i would have that ground at 108lsa
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post #15 of 33 (permalink) Old Nov 28th, 06, 04:18 PM
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Re: 400 sbc new solid roller cam suggestions

320/324 @ .020.....Holy huge-cam Batman!!!!

73' Nova, 350, Richmond 5 speed, Ford 9", Making some changes....
Best ET 11.88
MPH 116.05
60' 1.67
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